34
This article was downloaded by: [University of Glasgow] On: 02 May 2013, At: 22:58 Publisher: Taylor & Francis Informa Ltd Registered in England and Wales Registered Number: 1072954 Registered office: Mortimer House, 37-41 Mortimer Street, London W1T 3JH, UK Oriental Insects Publication details, including instructions for authors and subscription information: http://www.tandfonline.com/loi/toin20 New Eriophyid mites from India (Acarina: Eriophyoidea) M. Mohanasundaram a a Department of Entomology, Tamil Nadu Agricultural University, Coimbatore, 641 003, India Published online: 18 Apr 2012. To cite this article: M. Mohanasundaram (1984): New Eriophyid mites from India (Acarina: Eriophyoidea), Oriental Insects, 18:1, 251-283 To link to this article: http://dx.doi.org/10.1080/00305316.1984.10432206 PLEASE SCROLL DOWN FOR ARTICLE Full terms and conditions of use: http://www.tandfonline.com/page/terms-and-conditions This article may be used for research, teaching, and private study purposes. Any substantial or systematic reproduction, redistribution, reselling, loan, sub-licensing, systematic supply, or distribution in any form to anyone is expressly forbidden. The publisher does not give any warranty express or implied or make any representation that the contents will be complete or accurate or up to date. The accuracy of any instructions, formulae, and drug doses should be independently verified with primary sources. The publisher shall not be liable for any loss, actions, claims, proceedings, demand, or costs or damages whatsoever or howsoever caused arising directly or indirectly in connection with or arising out of the use of this material.

New Eriophyid mites from India (Acarina: Eriophyoidea)

  • Upload
    m

  • View
    238

  • Download
    11

Embed Size (px)

Citation preview

This article was downloaded by: [University of Glasgow]On: 02 May 2013, At: 22:58Publisher: Taylor & FrancisInforma Ltd Registered in England and Wales Registered Number: 1072954 Registered office:Mortimer House, 37-41 Mortimer Street, London W1T 3JH, UK

Oriental InsectsPublication details, including instructions for authors and subscriptioninformation:http://www.tandfonline.com/loi/toin20

New Eriophyid mites from India (Acarina:Eriophyoidea)M. Mohanasundaram aa Department of Entomology, Tamil Nadu Agricultural University,Coimbatore, 641 003, IndiaPublished online: 18 Apr 2012.

To cite this article: M. Mohanasundaram (1984): New Eriophyid mites from India (Acarina: Eriophyoidea),Oriental Insects, 18:1, 251-283

To link to this article: http://dx.doi.org/10.1080/00305316.1984.10432206

PLEASE SCROLL DOWN FOR ARTICLE

Full terms and conditions of use: http://www.tandfonline.com/page/terms-and-conditions

This article may be used for research, teaching, and private study purposes. Any substantialor systematic reproduction, redistribution, reselling, loan, sub-licensing, systematic supply, ordistribution in any form to anyone is expressly forbidden.

The publisher does not give any warranty express or implied or make any representation thatthe contents will be complete or accurate or up to date. The accuracy of any instructions,formulae, and drug doses should be independently verified with primary sources. Thepublisher shall not be liable for any loss, actions, claims, proceedings, demand, or costs ordamages whatsoever or howsoever caused arising directly or indirectly in connection with orarising out of the use of this material.

Vol. 18: 251-283 ORIENTAL INSECTS

NEW ERIOPHYID MITES FROM INDIA (ACARINA : ERIOPHYOlDEA)

M. Mohanasundaram Department of Entomology, Tamil Nadu Agricultural University,

Coimbatore-641 003, India

1984

ABSTRACT. An account of eriophyid mites collected in Tamil Nadu and Himachal Pradesh, India is presented. A new family Ashieldophyidae with Ashieldophyes pennadamensis, gen. et. sp. nov; a new subfamily Colopo­dacinae with Phyllocoptacus barringtoniae, gen. et sp. nov. (Eriophyi-dae)j and the (ol/owing new species are dealt with: Abacarus pseudo-striae, Aculus acutangulae, Aculus f1acourtiae, Artacris hirsutivagrans, Epiphytimerus palampurensis, Neodicrothrix tiliacorae, Paraciota tetra­canthae, Porcupinotus humpae, Proartacris pinivagrans, Prophyllocoptes riveae, Tetra anisomelae (Phyllocoptinae), Catarhinus spontaneae, Dipti­lomiopus ulmivagrans (Rhyncaphytoptidae).

The following descriptions of mites pertain to collections made in Tamil Nadu and Himachal Pradesh during 1981-82. The type and paratype slides have been deposited in the collections of the Department of Agri­cultural Entomology, Tamil Nadu Agricultural University, Coimbatore, India (TNAU).

Fam ily ASHIELDOPHYlDAE, nov.

Genus ASHIELDOPHYES, nov.

Characterised by absence of dorsal shield and setaej absence of first and second ventral abdominal setae; absence of first and second coxal setae; widely separated (ore coxae; absence of microtuberculation and mkrostriations in the type-species and by the location of the cha­racteristically shaped female genitalia between coxae.

Worm-like, wedge shaped mites with abdominal rings not differen­tiated into tergites and sternites, without any trace of microtubercula-tion or microstriations in the type-species. Rostrum with short form oral stylet. Shield absent; no dorsal setation. Coxae widely separated anteriorly; setiferous coxal tubercles I and 11 absent. Abdomen with lateral seta presentj first and second ventral setae absent; third ven­tral seta in lateral position; caudal seta present; accessory seta mi-nute. Female genitalia characteristic; closely appressed to coxal base and situated between the coxae, coverflap smooth and triangular. The georic name refers to the absence of the dorsal shield which is so cha­racteristic of Eriophyoids.

Type-species: Ashieldophyes pennadamensis, sp. nov.

At present the superfamily Eriophyoidea contains ,three famili;s, Nalepellidae, Eriophyidae and Rhyncaphytoptidae (]'Jewklrk ~nd KeIfer. 1975). The present genus Ashieldophyes can not be assigned to any of these families, since all the above three families have a clear dorsal

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

252 ORIENT AL INSECTS Vol. 18

shield area either with or without dorsal tubercles and setae of varying number. The present genus is also unique in the absence of the first and second ventral abdominal setae and by the absence of the first and second setiferous coxal tubercles, which are not seen in any genera among the three known families. The fore coxae are widely separated anteriorly, and the female genitalia are characteristically shaped and closely appressed to the base of coxae. Such conditions are not seen in any of the known families. Therefore, a new family Ashieldophyidae under Eriophyoidea is proposed.

1. ASHlElDOPHYES PENNADAMENSIS, gen. et. sp. nov. (Fig. 1)

Female: Worm like, reddish brown, wedge shaped, 265* long 40 thick; rostrum, 10 long, down curved; antapical seta 3 long. Dorsal shield absent and no dorsal setation. Fore leg 20 long, tibia 6 long, tibial seta 20 long, tarsus 4 long, claw 4 long, knobbed at tip, feather claw 4 rayed; hind leg 20 long, tibia 4 long, tarsus 6 long, claw 7 long, straight and knobbed at tip; coxae broadly joined, setiferous coxal tubercles I and II absent; III prominent and present at the hind coxal base; coxal area smooth. Abdomen with 30 rings, not differentiated into tergites and sternites; rings smooth throughout; without any trace of microtuberculations or microstriations; lateral seta 12 long on ring 3 or 4; first and second ventral setae absent, third ventral seta 16 long, fairly thick, on ring 6 from behind, in lateral position; caudal seta 45 long, accessory seta minute 0.5 long; female genitalia closely appressed between coxal base, 20 wide, 15 long, coverflap triangular, smooth and without any ribs; genital seta 10 long.

Male: Unknown.

HolotYEe: A holotype slide with females and 5 paratype slides with females; TAMil NADU: South Arcot District, Pennadam Sugar Factory, 16. viii.1981, ex Casearia tomentosa Roxb. (Flacourtiaceae), M. Mohanasun­daram, Call. No. 427 (TNAU). The mites are under surface leaf vagrants without causing any symptoms.

Family ERIOPHYIDAE

Keifer (1960) stated that the presence of the first pair of setife-rous coxal tubercles in Colopodacus weakens the status of the subfamily Nothopodinae. Since then several species have been described under this genus (Mohanasundaram, 1891 b) and Neocolopodacus Mohanasundaram (1980), allied to Colopodacus. Phyl1ocoptacus is the third genus with first pair of setiferous coxal tubercles in the Nothopodinae like mite. This genus, apart from possessing several of the Nothopodinae characters, like lateral position of fore claw, and broad and blunt anterior shield lobe, has some of the Phyllocoptinae characters, like the median abdomi­nal ridge with subdorsal troughs, tergal-sternal differentiation, and enlarged first abdominal tergite fused with the rear shield margin. The genera Colopodacus and Neocolopodacus appear misplaced in the subfamily Nothopodinae. A new subfamily Colopodacinae is proposed to include Colo­podacus, Neocolopodacus and Phyl1ocoptacus having first setiferous coxal tubercles in a Nothopodinae-type body. Its placement is between Notho-

• All measurements are in AI. microns.

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

1984 MOHANASUNDARAM : ERIOPHYOIDEA

podinae and Phyllocoptinae, as it combines the characters of these two subfamilies. Colopodacus is the type-genus.

KEY TO THE SUBFAMILIES OF THE ERIOPHYlDAE (Modified from Newkirk and Keifer, 1975)

1. Tibiae reduced or completely fused with tarsi, fore tibia never with se ta ......................"................."...... e' .. .. .... 2

Tibiae always distinct from tarsi, fore tibial setae nearly always present .. " .... " .. " .. " .. "" .......... """ ........ "" .. ,, 3

2. Spatulate or shovel shaped projections present on either rostral termen or on tarsi; legs when without spatulate appendages, very short, segments shortened or combined, feather claws large • • • • • • • . • • • • • • • • • • • • • • • • • •• Aberoptinae

Lacking spatulate projections, legs of average thickness, fore coxae often fused across centre line with sternal line faint or absent, first setiferous coxal tubercles absent •..•••• Nothopodinae

3. First setiferous coxal tubercles present, broad shield lobe over rostrum base, fore claw often on the inner lateral angle • • • • • • • • • • . • • • • • • • • . . . • . •. Colopodacinae

First setiferous coxal tubercles present, shield lobe. over rostrum not broad, fore claw in normal dorsal position; fore coxae not fused .................... " .. " .. " .. .. .. .. .. .. .. .. .... 4

4. Female genitalia noticeably projecting from thanosome venter,

253

appressed to coxae, usually separating coxae more than normal, an­terior female apodeme bent up and appearing shortened, female gen­ital coverflap with two rows of scorings, fore coxae usually nar­rowly connate at centre line, sternal line shortened, fore coxae with curving lines outlining produced coxal setiferous tubercles. Most genera lacking dorsal tubercles and setae ••• Cecidophyinae

Female genitalia lying more on level with thanosome venter, not appresed to coxae; coxae not unusually spread apart, sternal line most often of moderate length, internal female apodeme extending moderate distance forward; coxae often ornamented with granules dorsal setae rarely absent ••••••••••••••••••• 5

S. Body worm like, thanosomal rings subequal dorsoventrally, at least on anterior 0.5 or 0.66; shield typically lacking anterior lobe or with shalt projection over fosHum base, if anterior shield pro­jection present over rostrum, then this extension narrow, basally flexible and combined with narrow thanosomal rings •• Eriophyinae

Body fusiform and fitted for exterior living, shield usually with broad-based and rigid anterior lobe over rostrum I thanosome typi­cally divided laterally into broad and heavy dorsal tergites and narrow soft sternites, if no anterior lobe present or only a slight one, then some form of tergal-sternal differentiation dis­cernable at least in larger dorsal microtuberc1es; if no dorso-

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

254 ORIENTAL INSECTS Vol. 18

ventral contrast present, then broad shield lobe present • • • • . • • • • • . • . . • • • • • . • • •• • Phyllocoptinae

Subfamily COLOPODACINAE, nov.

KEY TO THE GENERA OF COLOPODACINAE

1. Fore coxae with a clear sternal line, fore tibial segment clear with a prominent tibial seta; dorsum of abdomen with a central and two lateral ridges forming two subdorsal troughs • • • • • • • • • • • • • • • • • • •• Phyllocoptacus, gen. nov.

Fore coxae weakly divided, (ore tibial segment present or absent; abdomen without ridges or troughs. • • • • • • • • • • • • •• 2

2. Dorsal shield tubercles ahead of rear shield margin directing setae up and centrad, fore tibial segment fused with tarsi • ••••• , •••••••••.••.•.• Colopodacus Keifer

Dorsal shield tubercles near shild margin, directing setae upward and backward; fore tibial segment clear and without tibial seta; a pair of setae at the rostral base. Neocolopodacus Mohanasundaram

Genus PHYLLOCOPTACUS, nov.

Body wedge-shaped, with a broad anterior lobe over rostrum base; shield with dorsal tubercles away from the rear shield margin; dorsal setae pointing upwards; fore leg with all usual segments and setation; tibial seta prominent, claw in the inner lateral angle; hind leg without patellar seta, and other segments and setation present; feather claw simple. Abdomen with clear broad tergites; microtuberculate sternites, more than twice numerous as the tergitesj first two abdominal tergites prominent; first tergite broad and fused with rear shield margin. Abdo­minal dorsum with a central and two lateral ridges with subdorsal troughs ending near telosome. All abdominal setae present except the second ventral and accessory setae which are absent. Coxae with a clear sternal line; female genitalia just away from coxal base, covetflap with faint longitudinal ribs in the middle in the type-species.

Type-species: Phyllocoptacus barringtoniae, sp. nov.

Phyllocoptacus is close to Colopodacus Kiefer (1960) in the posses­sion of first setiferous coxal tubercles and presence of broad shield lobe over rostrum base, but differs from it by the clear tibial segmen­tation, presence of a prominent tibial seta, absence of hind patellar setae, absence of second ventral seta, dorsum of abdomen with a central ridge, and subdorsal troughs ending near telosome. It is also unique in having the first abdominal tergite broad and fused with the rear shield margin. It resembles Anothopoda Keifer (19S9a) in the absence of second ventral seta, and Neocolopodacus Mohanasundaram (1980) in the presence of clear tibial segments and by the inner lateral position of the fore claw.

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

1984 MOHANASUNDARAM : ERIOPHYOIDEA 255

2. PHYLLOCOPTACUS BARRINGTONIAE. gen. et sp. nov. (Fig. 2)

Female: White, wedge-shaped 190 long. 60 wide, rostrum 18 long, down curved, antapical seta 3 long. Shield 55 wide, 40 long with a 10 long broad lobe anteriorly over rostrum base and the broad first abdomi­nal tergite fused to the rear margin. Admedians long, represented in the shield area, dorsal tubercles away from rear shield margin, 10 apart, dorsal seta 6 long, pointing upwards, sides of shield with longi-tudinal lines. Fore leg 30 long, tibia 6 long, tibial seta prominent, 14 long, tarsus 6 long, claw 5 long on the inner lateral aspect, feather claw 6 rayed. Hind leg 25 long, tibia 5 long, claw 10 long, tapering. Fore leg with all usual setae, hind leg with the patellar seta absent. Coxae widely separated with a clear sternal line, all three setiferous tubercles present, coxal area smooth. Abdomen with about 24 broad ter­gites and about 55 microtuberculate sternites, abdominal tergites with a central dorsal ridge and two lateral ridges, forming two subdorsal troughs ending near the telesome. The first two abdominal tergites are ta!ler than the rest, the first being broad and fused with the rear shield margin. Lateral seta 15 long on ring 8, first ventral seta 50, long on ring 20, second ventral seta absent, third seta 45 long, acces-so~y seta absent. Female genitalia 25 wide, 15 long, cover flap with famt scorings in the middle, genital seta 10 long.

~al~ 150 long, 50 wide, genitalia 15 wide, genital seta 8 long.

Halatype: A holotype slide with females and' 5 paratype slides with females; TAMIL NADU: South Areot District, Valavanur, ex Barringtonia acutangula (L.) Gaertn. (Lecythidaceae), 22.xi.1981, M. Mohanasundaram, Coli. No. 440 (TNAU). The mites are under surface leaf vagrants, cau­sing general yellowing and slight crinkling of leaves.

Subfamily PHYLLOCOPTINAE

3. ABACARUS PSEUDOSTRIAE, sp. nov. (Fig. 3)

. This species resembles Abacarus gossypil Mohanasundaram (1982) in I~S general features but could be differentiated from it by the large Sized tergal wax bearing microtubercles, the 8 rayed feather claw, the shield pattern formed by wax secretion, the seorings on the female geni­tal coverflap, apart from the measurements.

Female: 145 long, 45 thick, rostrum 20 long, down curved; antapieal se.ta 3 long7 Shield 40 wide, 38 long including lobe over rostrum basei With a pattern of wax secreting lines representing a short median in the posterior half; admedians converging anteriorly and with bifurcations in the posterior end; first submedian complete; second submedian forming the border of shield on the sides; two cross lines, one at the anterior border of shield and another at about the middle. 1n completely cleared specimens where wax is removed completely these lines are not visible. ~orsal tubercles at shield margin, 22 apart; dorsal seta 10 long poin-ting backwards. Fore leg 32 long; tibia 7 long; tibial seta 4 long; tarsus 5 long; claw 8 long tapering; feather claw 8 rayed with a thick central axis; hind leg 30 long; tibia 6 long; claw 8 long. Coxae broad­ly joined with few longitudinal scorings; all three setiferous tubercles present. Abdomen with about 48-50 tergites with wax producing broad

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

256 ORIENTAL INSECTS

microtuberclesj 80 sternites with fine microtuberculationj lateral seta 32 long on ring 18; first ventral seta 25 long On ring 32; second ven­tral seta 23 long on ring 52; third ventral seta 30 long on ring 6 from behind; caudal seta 70 long; accessory seta absent. Female genitalia 20 wide, 15 long with 18-20 thin lines; genital seta 17 long.

~ Unknown.

Vol.18

Holotype: A holotype slide with females and paratype slides 4, all with females; TAMIL NADU: Vriddhachalam, Muthandikuppam, 17.ii.1982, ex. Cassia sp. (Leguminosae), M. Mohanasundaram, Call. No. 458 (TNAU).

R~lation !2. ~ The brown mites are undersurface leaf vagrants and in the off season when the deciduous trees shed all the leaves, the mites are found in the buds. White waxy cast skins seen on the under-side of leaflets.

4. ACULUS FLACOURTIAE, sp. nov. (Fig. 4)

Female: Yellowish brown, 145 long; 52 wide, rostrum 15 long with a pair of basal spines; antapical seta not visible. Shield 45 wide, 40 long, median faintly represented in the centre with anterior and poste­rior bifurcations joining with the admedians; admedians wavy and com­plete; first submedian joining with the base of dorsal tubercles; second submedian form ing the anterior border of shield; anterior shield lobe projecting over rostrum base; dorsal tubercles near rear shield margin, 22 apart, dorsal seta 6 long pointing upwards; fore leg 25 long; tibia 8 long; tibial seta 5 long; tarsus 6 long; claw 5 long; curved and knobbed at tip; feather claw 4 rayed and thin; hind leg 23 long; tibia 6 long; tarsus 6 long; claw 5 long; coxae with all three setiferous tubercles; coxal area clear. Abdomen with about 26 smooth tergites and about 58 microtuberculate sternites; lateral seta 15 long on ring 12; first ven-tral seta 60 long on ring 25; second ventral seta 7 long on ring 36; third ventral seta 22 long on ring 6 from behind; caudal seta 70 long; accessory seta 1 long, dot-like. Female genitalia 20 wide; 12 long; coverflap with 12-14 lines; genital seta 3S long.

~ Unknown.

HOlot~pe: A holotype slide with females and paratype slides two all with fema eSt TAMIL NADU: South Areot, Padur near Ulundurpet, ex Fla­courtia ramonthi L' Herit (Flacouniaceae), 28.x.1981, M. Mohanasunda­ram, Coli. No. 426 (TNAU). The mites are under surface leaf vagrants.

This new species resembles Aculus desmodil Keifer (1964) in its general shield design but could be separated by the 4 rayed feather claw, non tuberculate tergites, clear coxal area and larger number of scarings on the female ginital coverflap.

5. ACULUS ACUTANGULAE, sp. nov. (Fig. 5)

Female: Worm like, light brown, 200 long; 50 thick; rostrum down curved, 18 long; antapical seta 5 long. Shield with projecting lobe over rostrum base; 50 wide; 42 long without any lines; dorsal tubercles just near rear shield margin 30 apart; dorsal setae pointing upwards and

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

1984 MOHANASUNDARAM : ERIOPHYOIDEA

forward. Fore leg 25 long, tibia 6 long; tibial seta 4 long; tarsus 5 long; claw 5 long with knobbed tip; feather claw, simple, broad and three rayed; hind leg 23 long; tibia 5 long; claw 5 long; coxae narrowly jOined, first setiferous tubercle with short setae; second of medium length; third seta long and pointing backwards; coxal area smooth. Ab­domen with about 21 broad tergites and about 24 broad sternites; ter­gites with elongated microtubercles in the middle of the ring, fading towards the sides; sternites smooth; lateral seta 7 long on ring 3; first ventral seta 7 long on ring 7; second ventral seta 7 long on ring 12; third ventral seta 18 long on ring 6 from behind; caudal seta 40 long; accessory seta absent. Female genitalia near coxal base; 15 wide; 12 long; coverflap with faint lines, about 6; genital seta 5 long.

~ Unknown.

257

Holot~ee: A holotype slide with females, and paratype slides 5 all with fema es; TAMIL NADU: South Arcot, Valavanur, ex Barringtonia acu­tangula (L) Gaertn. (Lecythidaceae), 22.xi.1981, M. Mohanasundaram, Call. No. 441 (TNAU). The mites are under surface leaf vagrants. "

This new species resembles Aculus atturensis Mohanasundaram (1979) in its clear shield area and broad feather claw but differs in the non­tuberculate sternites, 3 rayed feather claw, and the number of scorings on the female genital coverflap.

6. ARTACRIS HIRSUTIVAGRANS, sp. nov. (Fig. 6)

This species resembles Artacrls macrorhynchus (Nalepa) (Keifer, 1970) by its pointed shield projection but differentiated from it by the concrete submedian lines, apart from other features. This is the second record of this genus from the Indian Region.

Female: Worm like, white, 240 long; 60 thick, rostrum 20 long, down curved; antapical seta 5 long. Shield 25 long, 40 wide, with a clear pattern of lines; sides of shield granular; anterior projection 8 long; median complete in the posterior 0.66, fading out anteriorly; admedians complete, first submedian complete and wavy; second submedian in the anterior half of shield; dorsal tubercles at rear shield margin; 22 apart; dorsal setae 38 long pointing backwards; fore leg 40 long; tibia 12 long; tibial seta 8 long at basal 0.33; tarsus 8 long; claw 10 long, slightly curved; feather claw 4 rayed; hind leg 37 long; tibia 10 long; tarsus 8 long; claw 8 long; coxae broadly joined; lightly granular; seta on tubercle I, 12 long; on tubercle II, 35 long; on tubercle III, 50 long. Abdomen with about 90 rings uniformly microtuberculate; microtu-bercles on rear ring margin, elongate; lateral seta 35 long on ring 15; first ventral seta 50 long on ring 30; second ventral seta 20 long on ring 53; third ventral seta 40 long on ring 6 from behind; caudal seta 60 long; accessory seta 5 long. Female genitalia 22 wide; 15 long; coverflap with 6-8 lines; genitial seta 15 long.

Male: Unknown.

Holot~pe: A holotype slide with females and paratype slides 5 all with fema es; HIMACHAL PRADESH: Palampur, 1400m., ex Uibiscus sp. (Mal­vaceae), 26.iv.1981, M. Mohanasundaram, CoIl. No. 402 (TNAU). The mites

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

258 ORIENTAL INSECTS Vol. 18

are under surface leaf vagrants, found among the leaf hairs.

Genus PROARTACRIS, nov.

This new genus resembles Attacris Keifer (1970) by its anterior shield projection over the rostrum but differentiated from it by the dorsal tubercles away from rear shield margin directing setae upwards and by the presence of two spines on the rostrum base. Other differen-tiating features are the conspicuously large fore patellar seta; fusion of the suboral plate with the fore coxae; the female internal apodeme characteristical1y bridge-like; spermatheca with short tube; coverflap lobed, the distal lobe with scorings.

Body fusiform, cephalothorax with a broad, thin shield lobe projec­ting over rostrum base; rostrum normal with a pair of basal spines; dor­sal tubercles broad, away from rear shield margin, directing setae up­ward. Legs with all usual setation; fore patellar seta very prominent and long; subtarsal setae present; coxae broadly fused with the suboral plate; all three satiferous tubercles present; abdomen with tergal, sternal differentiation, uniformly studded with spine-like microtuber­cles; sternites about twice as numerous as tergites; all usual abdominal setae present. Female genitalia a little away from coxal base; internal apodeme bridge-like and characteristic in shape; coverflap divided into a basal clear area and distal part with longitudinal scorings.

Type-species: Proartacris pinivagrans, sp. nov.

7. PROARTACRIS PINIVAGRANS, sp. nov. (Fig. 7)

Female: Light brown, 240 long, 70 wide, rostrum 20 long, down cur-ved with two spines at the basal portion; antapical seta 10 long. Shield broadly triangular, 60 wide, 42 long, plus a 6 long broad lobe over rostrum base. Median incomplete, represented by broken lines; adme­dians complete; wavy; a curved line joining the median and admedians at the rear end; first submedian clear anteriorly, broken posteriorly; se­cond submedian forked posteriorly, third submedian forming the borders of the shield on the sides; sides of shield with fine sea rings; dorsal tubercles just away from shield margin; broadly conical, 18 apart; dor-sal setae 8 long, pointing upwards. Fore leg 3S long, tibia 9 long; tibial seta S long in the anterior half; tarsus 7 long; claw 8 long, tapering; feather claw 4 rayed; all usual leg setation present; the patellar seta very prominent, 4S long, a sub tarsal seta also present., Hind leg 32 long; tibia 8 longj tarsus 6 long; claw 8 long al\ usual leg setation present; coxae broadly joined with the suboral plate; all three setiferous tubercles presentj seta I, 8 long; seta II, 28 long; seta III, 50 long; coxal area with fine markings, abdomen with tergal, ster­nal differentiation; sternites about twice numerous as tergites; both uniformly microtuberculatej microtuberc1es fine, spine like on the ring margins; tergites about 50, sternites about 90j telosomal tergites with mierostriations; lateral seta 40 long on ring 20; first ventral seta 70 long on ring 40j second ventral seta 35 long on ring 58j third ventral seta 28 long on ring 6 from behind; caudal seta 70 longj accessory seta 7 long; female genitalia 28 wide, 23 long; coverflap segmented, basal segment clear, distal segment with about 16-18 short lines, coverflap does not cover the entire genital opening in some specimens; gential

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

1984 MOHANASUNDARAM ERIOPHYOIDEA 259

seta 32 long.

Male: 220 long, 60 wide, genitalia 20 wide; genital seta 18 long.

Holotype: A holotype slide with females and paratype slides 7 with females; HIMACHAL PRADESH: Palampur, 1400m., ex Pinus sp., 29.iv.1981, M. Mohanasundaram, CoIl. No. 406 (TNAU). The mites are found on the tender pine needles and on the tender terminal shoot among the hairs.

Genus EPIPHYTIMERUS, nov.

The new genus resembles Apodiptacus Keifer (1960) by the indented tip of the shield and the three abdominal ridges, but differentiated from it by its undivided, simple feather claw. It is separated from Abacarus Keifer (1944) by the indented anterior shield lobe, broad ter­gites with three rows of non-wax bearing lobes on the dorsal aspect, and by more numerous microtuberculate sternites. The genus is referable under Phyllocoptinae, Eriophyidae.

Dorso-ventrally flattened, elongate wedge shaped; rostrum of mode­rate size projecting vertically downwards; antapical seta nearly as long as rostral length; suboral plate fused with fore coxae; shield broadly triangular anterior shield lobe overhanging rostrum base, broad with in­dented tip in dorsal view, completely covering the rostrum; dorsal tubercles large, just near rear shield margin; dorsaJ setae pointing up-ward and backward. Legs with all usual setae; feather claw simple. Coxae with all three setiferous tubercles. Abdominal tergites broad with faint microstriations; tergites with three rows of dorsal non-wax bearing lobes with two troughs in between; the median row of lobes fading out after 16-18 tergites leaving a median dorsal trough behind; the lateral rows of lobes continuing up to telosomal beginning; teloso­mal tergites without such lobes; sternites 3.0x as numerous as the ter .. gites; finely microtuberculate; all usual abdominal setae present; female genitalia a moderate distance away from coxal base; coverflap with a row of faint lines; the internal apodeme of normal length and shape.

Type-species: Epiphytimerus palampurensis, sp. nov.

8. EPJPHYTIMERUS PALAMPURENSlS, sp. nov. (Fig. 8)

Female: Dorsa-ventrally flattened, wedge-shaped; 200 long; 70 wide across shield, rostrum 12 long, vertically bent downwards; with a pair of spines at the basal portion; antapical seta 10 long. Shield broadly triangular, 70 wide; 4S long; with a pattern of thickened raised lines forming cells with a broad median furrow; sides of shield with 4 cells on each side; dorsal tubercles prominent, S long, 4 thick, JUSt away from rear shield margin 30 apart from each other; dorsal seta 6 long pointing upward and backward. Fore leg 27 long; tibia 8 long; tibial seta at basal 0.3, 3 long; tarsus S long; claw 5 long, knobbed at tip; feather claw simple, 4 rayed; hind leg 2S long; tibia 6 long; tarsus S long; claw S long, similar to fore claw, coxae fused with the suboral plate; with all three setiferous tubercles; coxal area clearj seta I, 8 long; seta II, 10 long; seta III, 23 long; abdomen with about 28 broad tergites and 75 sternites; tergites with three rows of lobes dorsally,

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

260 ORIENTAL INSECTS Vol. 18

the middle row fading out on about 18th tergite, the lateral rows conti­nuing up to telosome; telosomal tergites simple; the dorsal rows of lobes form two troughs which unite to form a median trough in the poste-rior part of abdomen, tergites and the Jobes faintly marked with mic-rostriations; lateral seta 12 long on sternite 10; first ventral seta 25 long on sterni te 25; second ventral seta 7 long on sternite 45; third ventral seta 20 long on ring 5 fro,m behind; caudal seta 45 long; acces­sory seta 5 long; female genitalia 20 wide; 12 long; coverflap with 6-8 faint longitudinal lines; genital seta 8 long •

.M~k!. 200 long, 6S wide, genitalia 13 wide; genital seta 6 long.

!!gloty~e: A holotype slide with females and para type slides 4 with femalesjflMACHAL PRADESH: PaJampur, 1400m., ex epiphytic plant, M. Mohanasundaram, Call. No. 405 (TNAU). The brown mites are under surface leaf vagrants.

Genus NEODIROTfJRIX, nov.

The new genus is near Dicrothrix Keifer (1966 a) in its general shape and the bifurcate antapical rostral seta but differs from it by the absence of fore tibial setae, hind patellar setae, and second ven­tral setae and the absence of m icrotuberculation in the tergites and sternites. This genus is referable to the subfamily Phyllocoptinae.

Body fusiform in shape, with broad cephalothorax and anterior part of abdomen. Rostrum of moderate size, with short form oral stylet and with large bifurcate antapical setae. Shield broad with a large grooved lobe over rostrum base; dorsal tubercles nearly in the centre of the shield directing setae upwards. Fore leg with all usual segments, femora elongate conical, fore tibial seta absent. Hind leg with the patellar seta absent. Coxae broadly joined with a clear sternal line and with all three setiferous tubercles; coxal area smooth in the type­species. Abdominal tergites and sternites of equal number and width, anterior segments broad, enlarged and fused with the broad rear shield margin; lateral seta present; first and second ventral setae absent; third ventral seta present, telosome bent down; caudal seta present; accessory seta absent. Female genital coverflap with longitudinal sco­ring; apodoeme normal in shape.

Type-species: Neodicrothrix tiliacorae, sp. nov.

9. NEODICROTfJRIX TILIACORAE, sp. nov. (Fig. 9)

Female: White to brownish black, dorsoventrally flattened, 190 longj 80 wide at the shield; rostrum 15 long, downcurved with the characteris­tic bifurcate anrapical seta 10 long. Sheild 80 wide, 75 long with cha­racteristic striations represented by depressions; with two cross like depressions one behind the other in the centre. Dorsal tubercle at about the middle of the shield, 5 long conical; 30 apart, dorsal setae 15 long, thick, pointing upwards. Fore leg 20 long femur conical; tibia 5 long, tibial seta absent; tarsus 5 long; claw 5 long with knobbed tip, feather claw 4 rayed, appearing divided in dorsal view; hind leg 20 long; patellar seta absent; tibia 5 long; tarsus 5 long; claw 5 long; coxae with a clear sternal line, coxal area smooth with all three seti-

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

1984 MOHANASUNDARAM : ERIOPHYOIDEA

ferous tubercles. Abdomen with about 25 tergites and 25 sternites; de-void of m icrotuberculation except for the m icrostriations in the teloso­mal sternites; lateral seta 6 long on ring 2; first and second ventral setae absent; third ventral seta 8 long on ring 5 from behind; caudal seta 30 long; accessory seta absent. Female genitalia 20 wide; 15 long; coverfJap with about 10 lines and with basal cross lines; genital seta 6 long.

Male: 160 long, 70 wide at shield; genitalia 14 wide; genital seta 5 long.--

261

Holotype: A holotype slide with females and para type slides 7 with females; TAMIL NADU: South Arcot, Vanniarpalayam, ex Teliocora acuminata Miers (Menispermaceae), 29.x.1981, M. Mohanasundaram, Call. No. 437 (TNAU). The mites are under surface leaf vagrants causing severe rus-ting symptoms.

Genus PARACIOTA, nov.

The new genus resembles Aciota Keifer (1959 b) in the absence of the fore tibial and hind patellar setae but differs from it by the absence of the femoral setae in both legs; body more spindle form and abdominal dorsum flattened without any lateral lobes.

Body spindle form, slightly dorsoventrally flattened, rostrum of normal size, projecting down; shield triangular, with a thick lobe over rostrum base; dorsal tubercles near rear shield margin, dorsal setae pointing backwards. legs with fore tibial, hind patellar and femoral setae absent; feather claw simple. coxae with all three setiferous tubercles and with a clear sternal line. Abdomen with broad smooth ter­gites and about thrice numerous microtuberculate sternites, all usual abdominal setae present, accessory seta absent. Abdomen dorsally slig­htly flattened without any lateral lobes. Female genital coverflap with longitudinal scorings; internal apodeme of normal length and broad.

Type-species: Paraciota tetracanthac, sp. nov.

10. PARACIOTA TETRACANTHAE, sp. nov. (Fig. 10)

Female: Reddish brown, 190 long, 65 broad near shield, tapering behind; rostrum 20 long, down curved, antapical seta 5 long. Shield 60 wide, 45 long with a prominent lobe over rostrum base; shield area clear except for the lateral depressions in continuation with the dorsal tub­ercles; dorsal tubercles near rear shield margin, 35 apart; dorsal setae 5 long pointing backwards. Fore leg 25 long, tibia 6 long; tibial seta absent; tarsus 5 long; claw 6 long with knobbed tip; feather claw 5 rayed. Hind leg 24 long, tibia 6 long; claw 6 long. Coxae with a clear sternal line, coxal area smooth, with all three setiferous tubercles. Abdomen with about 18 broad, smooth tergites and about 40 faintly micro­tuberculate sternitesj lateral seta 10 long on ring 12; first ventral seta 27 long on ring 25; second ventral seta 30 long on ring 35; third ventral seta 18 long on ring 4 from behind; caudal seta 40 long; acces­sory seta absent; female genitalia 23 wide, 15 long; accessory seta ab­sent; female genitalia 23 wide, 15 long; coverflap with 12-16 faint lines; genital seta 8 long.

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

262 ORIENTAL INSECTS Vol. 18

Male: 180 long; 60 wide, genitalia 18 wide, genital seta 6 long.

Holotype: A holotype slide with females and paratype slides 6 with females; TAMIL NADU: Vriddhachalam, ex Azima tetracantha Lam. (Salvado-raceae), 7.xii.1981, M. Mohanasundaram, Coil. No. 445 (TNAU). The mites are undersurface leaf vagrants.

Genus PORCUPINOTUS, nov.

The new genus resembles Neotegonotus (Nalepa) (Newkirk and Keifer 1971) in its shield structure, type and position of dorsal tubercle and setae but lacks the characteristic enlargement of the first abdominal tergite found in Neotegonotus. Newkirk and Keifer (1971) gave this cha-racter for the type-species of the genus. Since a second species under this genus, Neotegonotus bengalensis Mandai and Chakrabarti (1982) has been colJected and described from lndia with the above character, it is evident that this character of enlarged first abdominal tergite is a stable one. Based on this character the type-species of the new genus can not be placed under Neotegenotus. The second important character which separates this genus from other known genera is the production of long wax filaments in rows on the tergal plates.

Fusiform mites with the thanosomal tergites with one median and two lateral ridges on either side, with wax filaments from the ridges, the dorsal filaments longer and lateral ones shorter; tergites clear dorsal-ly, microtuberculate laterally; sternites completely microtuberculate. Rostrum moderately large with short form oral stylets; a pair of spines at the rostral base. Cephalothorasic shield with moderate sized rigid anterior lobe over rostrum base and a big hump like projection in the reari dorsal tubercles elongated, located near rear shield margin, pro-jecting the coarse, dorsal setae upwards and backwards. Legs with all usual setation; feather claw simple. Coxae with all three setiferous tubercles. Abdominal tergites broader, sternites narrower, with the usual abdominal setation. Female genitalia a little away from coxal base, coverflap with longitudinal ribs; internal apodeme normal.

Type-species: Porcupinotus humpae, sp. nov.

The genus name is to indicate the form of the mite while alive with the wax filaments intact, resembling a minature porcupine.

11. PORCUPINOTUS HUMPAE, sp. nov. (Fig. 11)

Eemale: 150 long, 45 thick; rostrum 25 long, down curved with a pair of basal spines; antapical seta 6 long. Shield 40 wide, 32 long; shield area clear; dorsal tubercles 8 long, at rear shield margin, dorsal seta 20 long, coarse, tapering, pointing upwards and backwards. Fore leg 2S long; tibia '1 long; tibial seta 3 long; tarsus 5 long; claw 6 long; fea-ther claw 8 rayed. Hind leg 23 long; tibia S long; claw 6 long; coxae broadly joined with a clear sternel line; all three setiferous tubercles present; coxal area with faint seorings. Abdomen with about 40 broad tergites; smooth dorsally mierotuberculate laterally; and about 54 mi-crotuberculate sternites. Abdominal dorsum with a median ridge and two faint ridges on either side, with wax filaments on the ridges; dorsal filaments longer and lateral filaments shorter giving the characteristic

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

1984 MOHANASUNDARAM : ERIOPHYOIDEA

appearance to the mite both in dorsal and lateral views. Lateral seta 25 long on ring 8; first ventral seta 38 long on ring 20; second ventral seta 18 long on ring 33; third ventral seta 20 long on ring 6 from be­hind; caudal seta 60 long; accessory seta 3 long. Female genitalia 18 wide, 10 long; coverflap with 18-20 thin lines; genital seta 20 long.

Male: Unknown.

Holotype: A holotype slide with females, and paratype slides 5 all

263

with females; TAMIL NADU: Vriddhachalam, Muthandikuppam, 17.xi.1982, ex Cassia sp. (Leguminosae), M. Mohanasundaram, Coli No. 458 (TNAU).

Genus PROPHYLLOCOPTES, nov.

The new genus resembles Phyllocoptes Nalepa in its general shape but differs from it by the absence of the second ventral seta, the conspi­cuous and elongate fore tibial seta and the broad feather claw appearing divided in dorsal view. It is also close to Acritonotus Keifer (1962) in its long fore tibial seta but differs from it in the clear tergites, absence of second ventral seta and clear genital coverflap.

Body spindle form, circular in cross section; rostrum of moderate size, down curved. Shield triangular, with a short lobe over rostrum base. Dorsal tubercles ahead of rear shield margin, with setae direc-ting up and a Ii ttle centrad. Legs with all the usual setae; the fore tibial setae prominent and longer than the leg terminus; feather claw simple broad, appearing divided in dorsal view; fore coxae with a clear sternal line; all three setiferous coxal tubercles present. Abdomen with broad, dorsally smooth tergites and about three times numerous, microtuberculate sternites; abdominal dorsum evenly curved; lateral first ventral, third ventral and caudal setae present; second ventral and accessory setae absent. Female genitalia just away from coxal base, genital coverflap without any markings in the type species.

Type-species: Prophyllocoptes riveae, sp. nov.

This genus is referable under Phyllocoptinae, Eriophyidae.

12. PROPHYLLOCOPTES RIVEAE, sp. nov. (Fig. 12)

female: Worm-like, light brown, 210 long; 65 thick; rostrum 15 long, down curved, antapical seta 5 long; shield 60 wide, 53 long, with a clear lobe over rostrum base; shield area with faint longitudinal, interm ittant scorings; dorsal tubercles away from rear shield margin, 15 apart; dorsal seta 3 long pointing upward and inward. Fore leg 25 long, tibia 6 long, tibial seta at about middle, thick, 20 long, extending beyond the leg terminus; tarsus 6 long; claw 7 long, feather claw 7 rayed, broad and appearing divided in dorsal view; hind leg 24 long; tibia 6 long; claw 11 long. Abdomen with about 25 broad smooth tergites and about 65 micTotuberculate sternites, abdominal dorsum evenly curved; lateral seta 40 long on ring 6; first ventral seta 75 long on ring 20; second ventral seta absent; third ventral seta 30 long on ring 6 from behind, caudal set 35 long; accessory seta absent. Female genitalia 25 wide, 15 long, coverflap smooth; genital seta 6 long.

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

264 ORIENTAL INSECTS Vol.18

,Male: 200 long; 55 thick; genitalia 20 wide; genital seta 6 long.

Holotype~ A holotype slide with females and paratype slides 4 with females; TAMIL NADU: Vriddhachalam, ex Rivea hypocrateriformis Choisy (Convolvulaceae), 5.xii.1981, M. Mohanasundaram, Coli. No. 442 (TNAU). The mites are under surface leaf vagrants causing rusting of leaves.

13. TETRA ANISOMELAE, sp. nov. (Fig. 13)

Female: Worm-like, 220 long, 65 wide, rostrum 17 long, down curved; antapical seta 3 long; shield triangular, 30 long; 55 wide, with the an-terior end over hanging the rostrum base. Shield area fairly clear ex-cept for faint representation of admedians in a broken form. Dorsal tu­bercles at rear shield margin, 34 apart, dorsal seta 12 long, pointing backward and outward. Fore leg 30 long, tibia 8 long; tibial seta 5 long at basal 0.3; tarsus 7 long; claw 7 long, curved; feather claw 4 rayed. Hind leg 28 long; tibia 6 long; tarsus 7 long; claw 7 long cur­ved; feather claw 4 rayed. Hind leg 28 long; tibia 6 long; tarsus 7 long; claw 7 long. Coxae broadly joined; coxal area clear with all three setiferous tubercles; seta I, 6 long, very thin; seta Il, 20 long; seta III 30 long. Abdomen with about 27 broad smooth tergitres and 67 finely microtuberculate sternites. Abdominal tergites forming the dor­sal trough characteristic of the genus. Lateral seta 15 long on ring 10; first ventral seta 65 long on ring 2Si second ventral seta 18 long on ring 42i third ventral seta 20 long on ring 6 from behind; caudal seta 65 long; accessory seta not visible. Female genitalia a moderate distance away from coxal base; 22 wide, 15 long; coverflap almost clear; in some specimens 6 faint longitudinal lines visible; genital seta 10 long.

~ Unknown.

Holotype: A holotype slide with females, paratype 5 slides, all with females; HIMACHAL PRADESH: Palampur, 1400m., ex Anisomelas sp. (Labia­tae), 28.iv.1981, M. Mohanasundaram, Coli No. 404 (TNAU). The mites are vegrants on tender stem and lower side of the leaves.

Affinites: This species resembles Tetra balasi Farkas (1963) in its shield pattern but differentiated from it by the clear coxal area and the genital coverflap. It is also near Tetra calamorphae Keifer (1971) in its shield design but differentiated from it by the four rayed fea­ther claw, and the clear coxal area.

Family RHYNCAPHYTOPTIDAE

14. DIPTILOMIOPUS BENGALENSIS Chakrabarti and Mondal (1979)

Specimens examined: TAMIL NADU: Vriddhachalam, ex Azima tetracan-tha Lamk. (Salvadoraceae), xii.1981, M. Mohanasundaram, Call. No. 444. The mites were found as under surface leaf vagrants. Host and locality are new records for the mite.

15. DIPTILOMIOPUS CAMERAE Mohanasundaram (1981a)

Specimens examined: TAMIL NADU: Vriddhachalam, ex Vitis vitigenea

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

1984 MOHANASUNDARAM : ERIOPHYOIDEA

(Vitacea), wild grapes, S.xii.1981, M. Mohanasundaram, Call. No. 443. The mites were found as under surface leaf vagrants, host new record.

16. DIPTILOMIOPUS ULMIVAGRANS, sp. nov. (Fig. 14)

Female: YeJlowish brown, 180 long, 6S wide; rostrum 30 long, poin­ting downwards, antapical seta 6 long, shield SS wide; 28 long; with a clear pattern. Median faintly represented, admedians and submedians form a network of cells; dorsal tubercles away from shield margin, 2S apart; dorsal setae absent. Fore leg 35 long, tibia 5 long, tibial seta absent, tersus 11 long, claw 8 long with knobbed tip; feather claw di­vided with 7-8 rays in each; hind leg 30 long, tibia 4 long, claw 8 long. Coxae with first setiferous tubercles absent; fore coxae well se-parated; coxal area smooth. Abdomen with about 60-65 smooth tergites, and about 85 m icrotuberculate sterni test lateral seta absent; first ven-tral seta 8 long on ring 32; second ventral seta 5 long on ring 50; third ventral seta 40 long on ring 11 from behind; caudal seta 60 long; accessory seta 1 long, dot-like. Female genitalia 25 wide, 15 long; coverflap with crescent ric scorings and basal granulations; genital seta 6 long.

Male: Unknown.

265

Holot5pe: A holotype slide with females and paratype slides 5 all with lema eSt TAMIL NADU: Vriddachalam, ex Holoptelia sp. (Ulmaceae), 9.xii.1981, M. Mohanasundaram, Col1. No. 446 (TNAU). The mites are under surface leaf vagrants.

This species resembles Diptilomiopus camerae Mohanasundaram (1981 a) in its general shield pattern but differs by the clear coxal area, cres­centric scorings on the female genital coverflap and the large number of rays in the feather claw. It differs from D. abronius Keifer (1939) by the increased number of rays in the feather claw, the clear coxal area and the crescentric scorings on the female genital coverflap apart from the measurements.

17. CATARHINUS SPONTANEAE, sp. nov. (Fig. 15)

This is the third species to be described under the genus Catarhinus Keifer (1959, b) which is recorded for the first time from the Indian region. The new species resembles Catarhinus axonopi Boczeck (1960) in its clear coxal area but differs from it by the clear shield area; it is differentiated from the type-species C. trlcholaenae Keifer (1959 b) by its clear coxal area, clear dorsal shield, more linear form; abdominal dorsum with a broad shallow trough ending near telosome instead of a median ridge and subdorsal troughs. Among the population thin and thick forms were seen.

Ih.in...female: Worm like, light brown, 230 long; 45 thick; rostrum 35 long, abruptly down curved, antapical seta 10 long subapical seta bent abruptly, shield 40 wide, 40 long; shield area clear; dorsal tubercles just away from rear shield margin, 16 apart; dorsal seta 3 long pointing upward; fore leg 40 long; tibia 12 long; tibial seta 8 long at about middle; tarsus 9 long; claw 7 longj feather claw 10 rayed, broad and appearing divided in dorsal view; hind leg 38 long, tibia 11 long, claw

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

266 ORIENTAL INSECTS Vol. 18

7 long, all usual leg setation present except fore femoral seta. Abdo­men with about 85 narrow smooth tergites and about 105 finely microtu­berculate sternites; lateral seta 14 long on ring 15; first ventral seta 80 long on ring 32; second ventral seta 40 long on ring 60; third ven­tral seta 45 long on ring 10 from behind; caudal seta 58 long; accessory seta absent. Female genitalia 25 wide, 17 long; coverflap with basal granulations and distally smooth; genital seta 12 long.

~ 195 long, 40 thick, genitalia 15 wide, genital seta 8 long.

Holotype: A holotype slide with females and Paratype slides 5 all with females; TAMlL NADU: Vriddhachalam, ex Saccharam spontaeum (Gra­minaceae), 9.xii.1981, M. Mohanasundaram, Call. No. 447 (TNAU). The mites are upper and under surface leaf vagrants found in the laminar grooves causing no symptoms of damage. This species was found along with Abacarus sacchari Channabasavanna (1966) for which Saccharum spon­taneum is a new host reco rd.

Description of thick form: Female: 270 long, 65 thick; rostrum '3D long with the bentrostral seta at the tip. Shield 60 wide, 57 long including the 11 long anterior projection over rostrum base; shield area without lines; dorsal tubercles 18 apart, just away from the rear shield margin, dorsal seta 2 long pointing upwards. Fore leg 40 long; tibia 12 long; tibial seta 8 long; tarsus 9 long; claw 8 long; knobbed at tip; feather claw 9 rayed, broad and appear divided; hind leg 38 long, tibia 10 long, claw 8 long; knobbed at tip. Abdomen with about 42 broad ter­gites with faint elongated microtuberculation; 105 sternites with fine dot like microtuberc1es; dorsum with a broad shallow trough; lateral seta 8 long on ring 20, first ventral seta 80 long on ring 40; second ventral seta 8 long on ring 66; third ventral seta 28 long in ring 7 from behind; caudal seta 40 long; accessory seta absent. Female genita­lia 30 wide; 20 long; coverflap smooth with basal granulations; genital seta 9 long.

Male: Unknown.

Discussion: The earliest record of the occurrence of thick and thin forms of females was by Keifer (1962) in the case of Eriophyes sarcobati (Keifer), a mite forming blister like swellings in Sarcobatus vermicula-tus (Hook) (Chenopodiaceae). This phenomenon was also reported in the case of Eriophyes saccharini (Wang) (-Aceria sacchari Channabasavanna) (Channabasavanna, 1966) which is also a blister forming mite on Saccha­rum officianarum leaf sheath. Later this aspect was studied under field and laboratory conditions and the significance of the occurrence of the thick and thin forms has been discussed by Mohanasundaram (1979 a). The occurrence of the thick and thin forms were also in the case of the gall forming mite Eriophyes vdddhagiriensis Mohanasundaram (1981 c), the thick forms in the larger flower galls and the thin forms in the pin head sized leaf galls. In the present study the occurrence of the thick and thin forms are noted in a non gall forming, exposed, vagrant mite species, Catarhinus spontaneae, sp. nov. as well as Abacarus saccharl Channabasavanna (1966) infesting Saccharum spontaneum.

ACKNOWLEDGMENTS. Thanks are due to the staff of Botanical Survey of India, Southern Circle, Coimbatore for identification of host plants.

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

1984 MOHAN ASUNDARAM ERIOPHYOIDEA 267

REF ERE N C E S

BOOZEK, J., 1960. A new genus and three new species of eriophyid mites (Acarina) J. Kansas Ent. Soc., 33 (1): 9-14.

CHAKRABARTI, Sand MONDAL. S., 1979. Studies on the eriophyid mites (Acarina: Eriophyoides) of India-II. Descriptions of three new spe-cies from west Bengal. Oriental Ins., 13: 47-54.

CHANNABASAVANNA, G. P., 1966. A contribution to the knowledge of Indian eriophyid mites (Eriophyoideaj Trombidiformesj Acarina) 53 pp. Univ. Agric. Sci. Bangalore.

FARKAS, H. K., 1963. On the Eriophyids of Hungary IV. The description of new species. Acta Zoo!. Acad. Sci. Hungarici, 9(3-4): 237-270.

KEIFER, H. H., 1939. Eriophyid studies VII. Bull. Calif. Dept. Agri., 28: 484-505.

KEIFER, H. H., 1944. Eriophyid Studies XIV. Bull. Calif, Dept. Agri., 33 (1): 18-38.

KEIFER, H. H., 1956. Eriophyid Studies XXIV. Bull; Calif. Dept. Agri., 44 (4): 159-164.

KEIFER, H. H., 1959a. New Eriophyid mites. Ann. Ent. Soc. Amer., 52: 649-657.

KEIFER, H. H., 1959b. Eriophyid studies XXVII. Occasional papers No. 1. Bur. Ent. Calif. Dept. Agri. 18 pp.

KEIFER, H. H., 1960. Eriophyid Studies B.1. Bur. Ent. Calif. Dept. Agri. Spec. Pub!., 1960: 1-20.

KEIFER, H. H., 1962. Eriophyid studies B.8. Bur. Ent. Calif. Dept. Agri. Spec. Pub!., 1962: 1-20.

KEIFER, H. H., 1964. Eriophyid Studies. B.12. But. Ent. Calif. Dept. Agri. Spec. Publ., 1964: 15-16.

KEIFER, H. H., 1966a. Eriophyid Studies B.18.Bur. Ent. Calif. Dept. Agri. Spec. Publ., 1966: 1-20.

KEIFER, H. H., 1966b. Eriophyid Studies B.2o. Bur. Ent. Calif. Dept. Agri. Spec. Pub.,. 1966: 1-20.

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

268 ORIENTAL INSECTS Vol. 18

KEIFER, H. H., 1970. Eriophyid Studies. C.4. ARS, USDA, Spec. Pub., 1970: 1-24.

KEIFER, H. H., 1971. Eriophyid Studies C.5 ARS, USDA, Spec. Pub., 1971: 1-24.

MOHANASUNDARAM, M., 1979a. The significance of the occurrence of thick and thin forms in the sugarcane blister mite Eriophyes saccharini (Wang) (Acari: Eriophyidae) - First All India Symposium in Acarology held at Univ. Agric. Sci., Bangalore.

MOHANASUNDARAM, M., 1979b. Indian Eriophyid Studies. I. Indian J. Acar., 4: 1-9.

MOHANASUNDARAM, M., 1980. Indian Eriophyid Studies II. Mysore J. Agri. Sci., 14: 515-528.

MOHANASUNDARAM, M., 1981a. Record of Rhyncaphytoptid gall mites (Rhyncaphytoptidae: Eriophyoidea) from South India. Oriental Ins., 15(1): 45-55.

MOHANASUNDARAM, M., 1981b. New gall-mites of the subfamily Nothopodinae (Acarina: Eriophyidae) from India. Oriental Ins., 15(2): 145-166.

MOHANASUNDARAM, M., 1981c. New eriophyid mites (Acarina: Eriophyidae) from Tamil Nadu. Oriental Ins., 15( 2): 167 -174.

MOHANSUNDARAM, M., 1982. Two new species of Abacerus (Acari: Eriophyidae) on economic hosts in Tamil Nadu. India J. Acar., 6: 9-13 (1981).

MONDAL, S. and CHAKRABARTI, S., 1982. Studies on the eriophyid mites (Acarina: Eriophyoidea) of India. XI. Descriptions of three new species from West Bengal. Entomon., 7(3): 361-366.

NEWKIRK, R. A. and KIEFER, H. H., 1971. Eriophyid Studies C. 5. ARS, USDA Spec. Pub., 1971: 1-24.

NEWKIRK, R. A., and KIEFER, H. H., 1975. Eriophyoidea: Synoptic keys to groups and genera. In: Mites Injurious to Economic plants - Ed. Jep­pson, L. R. t H. H. Keifer and E. W. Baker. University of California Press, 614 pp.

FIGURES 1-15 : The details of the drawings are as follows:

Legend to letterings in the figures: API - Internal female apodeme; ARS _ Antapical rostral seta; CS - Side view of caudal end; CV - Ventral view of caudal end; D - Dorsal view of mite; DA - Dorsal view of anterior end; ES - Side skin structurej F - Feather claw; GFI - Female genitalia and coxae from below; GM - Male genitalia; L1 - Left fore leg; L2 ~ Left hind leg; S - Side view of mite; SA - Side view of anterior end.

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

1984 MOHAN ASUNDARAM ERIOPHYOIDEA 269

Fig. 1. AshieBdophycs pcnnadammcnsis. sp. nov.

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

270

Fig. 2.

ORIENTAL INSECTS

t et sp. nov. barringtol1liae. ge • PbylUocoptacus

Vol. 18

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

1984 MOHANASUNDARAM : ERIOPHYOIDEA 271

Fig. 3. Abacarus pseudostriac. sp. nov.

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

272 ORIENTAL INSECTS Vol. 18

~ F

~ ~AP1

OA

Fig. 4. Aculu5 fDavourtiac. sp. nov.

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

1984 MOHANASUNDARAM : ERJOPHYOIDEA 273

Fig. 5. Aculus acutallUgulae, sp. nov.

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

274 ORIENTAL INSECTS Vol. 18

Fig. 6. Artacris hirsuUvagrans. sp. nov.

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

1984 MOHANASUNDARAM ERIOPHYOIDEA 275

DA

Fig. 7. Proartacris pinivagrans, get.et sp. nov

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

276

~ 1 1 I GM

ORIENTAL INSECTS

Fig. 8. Epipbytimcrus palampurcnsis. gen. et sp. nov.

Vol. 18

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

1984 • ERIOPHYOIDEA MOHANASUNDARAM •

DA GF1

Fig. 9. lNfcodicrothruc: . tiJiiacorac , e t sp. nov. gen.

277

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

278

I I I

\ , t '

ORIENTAL INSECTS

I '

~, .\

~i --..: ...

DA

Fig. 10. Paradota tctracanthac, sp. nov.

Vol. 18

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

1984

• F

MOHAN ASUNDARAM ERIOPHYOIDEA

, 't:. .•

"I

Fig. 11. POf'ClI.IIpino1Lus humpac. gen. et sp. nov.

279

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

280 ORIETNAL INSECTS Vol. 18

.. ' " ; .. . ,', : : I II ".

/:'u:>;::::':'\'::: : .: 't ":. :: :

: . ; : . . .

DA

Fig. 12. ProphyHccoptcs rivac. grn. et sp. nov

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

1984 MOHANASUNDARAM : ERIOPHYOIDEA 281

.. F

I ; DA

Fig. 13. Tetra anisomclae. sp. nov

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

282 ORIENT AL INSECTS Vol. 18

Fig. 14. DipUlIommiopus ulmmivagrans. sp. nov.

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3

1984 MOHANASUNDARAM ERlOPHYOIDEA 283

Fig. 15. Catarhinus spontal1lcac, sp. nov.

Dow

nloa

ded

by [

Uni

vers

ity o

f G

lasg

ow]

at 2

2:58

02

May

201

3