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,

Rev. Brasll. Bioi., 30(2): 211-216

Julho, 1970 - Rlo de Janeiro, GB

GO TIDS FROM PO(:OS DE CALDAS, STATE OF INAS GERAIS, BRAZIL ( Opiliones, Gonyleptidae) 1

HELIA E. M. SOARES Faculdade de Ciencias Medicas e Biol6gicas, Botucatu, Sao Paulo

(With 10 text-figures)

Through the courtesy of Dr. Johann . Becker, entomologist in the National Mu­: seum at Rio de Janeiro, I have been able to ; study in the present paper a small lot of ; Opiliones collected in Pogos de Caldas, State : of Minas Gerais, Brazil. The town of Pogos i de Caldas is situated in a region of great ; radioactivity, and this is the reason why the ' present work was partially sponsored by the :.u. S. Atomic Energy Commission.

The majority of the specimens reported . on are the results of the collecting efforts of Dr. Johann Becker.

The collection I have at hand, consisting · almost exclusively of Opiliones of the family , Gonyleptidae, though small, is an interesting one. Only one specimen of the female sex of the family Phalangodidae was sent, so I

· decided · to study it on another opportunity, ' when more representative material is avail­. able.

As to the records of the species, I will refer only to the localities within Pogos de

Caldas, avoiding to repeat frequently the town name.

All examples, including the types, are deposited in the arachnological collection of the National Museum at Rio de Janeiro,

1 Received for publication October 15, 1969.

Brazil. Some duplicates are dPoosited in H . Soares collection.

Family GONYLEPTIDAE

Subfamily Bourguyinae

Discocyrtoides nigricans (Mello-Lei tao)

Ancistrotus nigricans Mello-Leitao, 1922: 344 •

Discocyrtoides nigricans, Soares & Soares, 1948: 561, 562.

Records - a) ~ from Alto da Santa Cruz, July 31, 1965 (J. Becker); b) 2 ~ ~

and 1 ~ from Morro do Ferro (under a trunk fallen on the field), February 2, 1965 (J. Becker, 0 . A. Roppa and 0 . Leoncini); c) 1 ~ and 2 ~ ~ from Campo do Saco, August 1, 1964 (0. Leoncini); d) 1 ~ from

Campo do Villela, November 10, 1963 (J. Becker and 0. A. Roppa); e) 8 ~ ~ and 9 ~ ~ from Morro do Ferro, July 21, 1965

(J. Becker); f) 2 ~ ~ and 2 ~ ~ from Mor­ro do Ferro (in the forest) , February 2,

1965 (J. Becker); g) 1 ~ and 3 ~ ~ from Caixa D'agua, August 3, 1964 (0. Leonci­

ni) ; h) 1 ~ from Morro do Ferro, August 23, 1963 (J. Becker and 0. A.. Roppa); · i)

12 ~ ~ and 17 ~ ~ from Morro do Ferro,

212 HELIA E. M. SOARES

December, 1967 (J. Becker); j) 1 ~ from Campo do Saco, October 11, 1965 (0. A. Roppa).

Subfamily Goniosominae

Acutisoma monticolum Mello-Leitao

Acutisoma monticoZa Mello-Leitiio, 1922: 342.

Acutisoma monticoZum, Soares & Soares, 1948: 626.

Records - a) 7 ~ ~ and 23 ~ ~ from bottom of Morro Sao Domingos - Caixa D'agua, December 17, 1963 (J. Becker and 0. A. Roppa); b) 12 ~ ~ and 14 ~ ~ from Fonte dos Amores, October 24, 1963 (J. Bec­ker and 0 . A. Roppa); c( 1 ~ and 6 ~ ~

from Morro do Ferro (interior of the smaller gallery), February 8, 1965 (0. A. Roppa); d) 1 ~ and 1 ~ from Morro do Ferro, No­vember 24, 1964 (0. Leoncini); e) 10 ~ ~

and 25 ~ ~ from Morro do Ferro, January 1, 1967 (J. Becker, 0. A. Roppa and 0. Leon­cini) ; f) 1 ~ and 1 ~ from Po~os de Caldas, December, 1965 (J. Becker) .

Subfamily Gonyleptinae

Gonyleptes atrus Mello-Leitao

GonyZeptes atrus Mello-Leitiio, 1923: 140, fig. 16; Soares & Soares, 1949: 175.

Records - a) 3 ~ !? from Morro do Ferro (bottom 5 of the mountain), January 29, 1965 (J. Becker and . 0 . Leoncini); b) 1 ~ from Morro do Ferro, June 11, 1964 (J. Becker, 0. A. Roppa and H. N. da Cunha); c) 1 ~ from Morro do Ferro (in swamp, bottom of the mountain), February 13, 1965 (0. A. Roppa).

Paragonyleptes antiquus (Mello-Lei tao)

GonyZeptes antiquus Mello Leitiio, ·1934: 415, fig. 6. .

ParagonyZeptes antiquus, Soares & Soares, 1949: 202.

Records - a) 4 ~ ~ and 2 ~ ~ from Morro do Ferro, December 20, 1963, (J. Bee-

ker and 0. A. Roppa); b) 3 ~ ~ and 3 ~ !?

from Campo do Saco, August 9, 1964 (0. Leoncini) ; c) 4 ~ ~ and 5 ~ ~ from Retiro Branco, July 13, 1965 (J. A. Vasconcellos); d) 6 ~ ~ and 4 ~ ~ from Morro do Ferro, June 18, 1964 (J. Becker); f) 1 ~ from Campo do Saco, June 18, 1964 (J. Becker); g) 9 ~ ~ and 9 ~ ~ from Campo do Saco, October 11, 1965 (0. A. Roppa).

Paragonyleptes fulvigranulatus Mello. eitao,

ParagonyZeptes fuZvigranuZatus Mello-Lei­tiio, 1922: 339; Soares & Soares, 1949: 204 .

Records - a) 1 ~ from Fonte dos Amo­res, October 24, 1963 (J. Becker and 0. A. Roppa); b) 1 ~ from Caixa D'agua, August 3, 1964 (0. Leoncini).

Subfamily Pachylinae

Beckeresia g. n.

Eye tubercle with a median high spine directed upwards and forwards. First, se· cond and fifth areas without median arma­ture, third with a pair of tubercles, fourth with a very robust conical median apophysis in the male .. First area with a median line. First, second and third free tergites, femora of palpi and anal operculum without median armature. Tarsal segments: 5-6-6-6. Basitar­sus of first tarsus not enlarged.

Type-species: Beckeresia beckeri sp. n.

Beckeresia notwithstanding its rounded form and the presence of a strong forwards directed spine on the front margin of the cephalothorax, seems, according to the arma­ture, to be more related to Berlaia Mello­Leitao, 1940: 9, from which it differs by hav­ing the third free tergite unarmed and the fourth area with a very robust conical me­dian apophysis. In Berlaia boj;h the third free tergit and the fourth area (in the male and in the female sex) have a median spine. Both Beckeresia and Berlaia have rounded bodies, but in this respect they differ in their shapes.

•

GONYLEPTIDS FROM POCOS DE CALDAS, MINAS GERAIS 213

Beekeresia beckeri sp. n. (Figs. 1-5)

~ Length: 4,5 mm. Tarsal segments: 5-6-6-6.

Anterior margin of cephalothorax granu­late, with a median elevation and three hair­-tipped spines on each side near the angles. Cephalothorax with few minute granulations behind the eye tubercle. Eye tubercle granu­late, with a high spine directed upwards and forwards. First area with a median line

' without median armature, with few small granulations in the median portion. Second area without median armature, with few small granulations in · the median portion. Third area with two median tubercles, with a granulation close to each of these tubercles

' and with a short transverse row of granula-tions near the third groove. Fourth area smooth, with a very strong conical median apophysis slightly curved forwards and extendind throughout the length of the area. Fifth area and first and second free tergites unarmed, with a row of granulations larger than those of the first and second areas· the

' median granulation of the fifth area a little larger than the others; the three most lateral granulations on each side of the first and se­cond free tergits much larger than others; the third free tergite also unarmed, with a row of granulations and scattered minute gra­nulations before this row. Lateral areas of the abdominal scute with two rows of granu­lations (those of the marginal row larger), with a strong spine (the tip of which is turned down) between the second and third area. Anal operculum with minute hair-tip­ped granulations. Free sternites with a row of hair-tipped granulations. Stigmatic area and coxae with small hair-tipped granules

densely distributed. Palpi weak and short: femora unarmed, with two small ventral spines; tibiae with 3-3 and tarsi with 4-4 ventral spines. First legs granulate: femora nearly straight, with three prolateral median spines. Second legs granulate: femora nearly

straight, prolaterally with a small apical spine. Third legs: femora curved, granulate, retrolaterally with a row of ventral spines; patellae and tibiae granulate, the latter re­trolaterally with a longitudinal row of ven­tral spines. Fourth legs: coxae with minute hairtipped granules, with an outer transverse apical apophysis, on the basis of which there is a strong blunt spine directed back­wards; trochanteres longer than wide, with irregularly distributed hairs, with a small apical inner ventral spine, with an outer long strong apical apophysis, which is curved and bifid, carenate on each side, basally depressed, wider and with a tubercle; fem­ora short, curved, granulate, dorsally with two large blunt geminate tubercles on the base and two large spines on the apex, ven­trally with two other inner tubercles slightly smaller and resembling those of the base of the dorsal surface, with a strong median inner spine curved and directed downwards

' with apical inner spine, with a row of outer tubercles; patellae and tibiae granulate and tuberculate. ·

General colour dark brown, the lateral margins of the abdominal scute, the fifth area, the spines of the eye tubercle and the granules of the tergites dull yellow. Legs dark piceous, trochanteres I-III dull yellow

and IV redish brown, all femora dull yellow (those of the third pair dark on the apical

portion). Chelicerae and palpi dull yellow,

with an irregular dark reticulation.

Male holotype: Morro Sao Domingos, February 30, 1964 (J. Becker).

This species is dedicated to Dr. Johann Becker.

Discocyrtus latus Mello-Leitao

Discocyrtus latus Mello-Leitao, 1935: 14 (fig. 5), 36, 101; Soares & Soares, 1954: 251.

Records - a) 4 ~ ~ and 1 ~ from Campo do Saco, August 1, 1964 (0. Leonci-

214 ,- .~ - ~

ni) (1 if in the private collection "H. -s ·oa-' res"); b) 1 ~ from Canipo do Saco, June, 1964 (0. Leoncl:ni); c) 4 ~ ~ - and 8 9 9

from Campo -do Saco, June iS, 1964 (J. Bec­

ker, 0. A. Roppa and 0. Leoncini); d) 2 ~ ~ arid 1 · 9 from Morro do Ferro, December

20, 1963 (J. Becker and 0. A. Roppa); e) 1 ~ from Morro do Ferro, June 9, 1964 (J. Becker) ; f) 2 ~ ~ and 11 9_ 9 from Morro do Ferro (under termite nest of the genus Armitermes), August 23, 1963 (J. Becker

and 0 . A. Roppa); g) 1 ~ from Veu da Noiva, August 4, 1965 (J. Becker); h) 5 ~ ~

and 13 9 9 from Campo do Saco, December

4, 1966 (J. Becker).

Eopachyloides g. n.

Eye tubercle with a median spine direct­ed upwards and forwards. First area with a median line (rarely without a median line). First, second and fifth areae without

median armature, third with a pair of blunt apophyses in the male, unarmed in the fe­male, fourth with a pair of broad, low and elongate tubercles in the male. Free tergites,

femora of palpi and anal operculum unarm­ed. Tarsal segments: 5-6-6-6. Distitarsus of

first tarsus not erilarged.

Type-species: Eopachyloides trochante­

ralis sp. n.

This genus, according to the exhibited characters, appears to be very closely related to Eopachylus Mello-Leitao, 1931: 94, from

which it differs: 1st - by the third area which instead of pair of spines has in the

male two large blunt apophyses; 2nd - by the presence of two median broad, low and

elongate tubercles in the fourth area in the male; 3rd -by the not enlarged distitarsus of first tarsus. The female could be easily taken by a Progyndes Roewer, 1916: 107, ·but in the latter the third area is unarmed even in the male.

Eopachyloides trochanteralis sp. n. (Figs. 6-10)

if. Length: 4,0 mm. Tarsal segments: 5-6-6-6.

9 . Length: 4,3 mm. Tarsal segments: 5-6-6-6.

~ . Anterior margin of cephalothorax smooth, with a pair of tubercles and one spine on each side near the angles. Eye tu­bercle marginal, high, with a high spine di­rected upwards and forwards. Cephalothorax with rare minute piliferous granules on the hind portion (these granules are only visible when the material is slightly wet with alcohol). First area very long with a median longitudinal line that can be seen when the area is. slightly wet with alcohol. First, se­cond and fifth areae unarmed, first and se­cond with minute granules irregularly dis­tributed. Third area with a pair of strong granulate blunt divergent apophyses and minute scattered granules. Fourth area with two low and elongate median tubercles as long as the area and provided with small granules. Fifth area and free tergites with a row of piliferou:s polished granules. Lateral margins of the abdominal scute with two rows of small granules, those of the outer row larger and polished at the level of the second area. Anal operculum unarmed, granulate. Free sternites with a row of mi­nute hair-tipped granules. First and second coxae with acute piliferous granules, third coxae with minute hair-tipped granulations. Palpi small: trochanteres with a low ventral piliferous tubercle; femora unarmed with two ventral piliferous granules (one basal another submedian); tibiae with 3-3 and tarsi with 3-4 ventral spines. First legs granulate: femora substraight and tibiae with a ventral outer row of tubercles. Second legs granulate. Third legs granulate, the femora and tibiae with two ventral rows of small spines (those of the tibiae stronger and lar­ger). Fourth legs: coxae with minute hair­-tipped-granulations irregularly distributed,

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..

/ '\

GONYLEPTIDS FROM P6<;os:DE CALbAS, MINAS GERAIS 215

without apical iruier spine, with two apical apophyses, both directed backwards, the outer one conical, rather transverse, close to the coxa, curved at the free tip, the other shorter and about halfway between the inner and the outer portion of the apex; trochan­teres longer than wide, with two large blunt outer tubercles close together on the base, with a strong apical inner spine, and with a strong apical outer apophyses (on the base of

Chelicerae and palpi dull yellow, with dark reticulation. First to third trochanteres dark yellow. · First to third femora reddish­pr9wn, rather blackish. Cephalothorax black­ish brown. Abdominal scute black. Lateral margins dark, with two dull yellow longi­tudinal lines, the one close to the limi~ing sulci of the areae of the scute and the other, lighter, along their outer limiting border. First metatarsi dark brown with, a subme-

Beckeresia beckeri g.n., sp.n., ~. - Fig. 1: Dorsal view; fig. 2 : lateral view of the eye tubercle; f ig. 3 : right fourth trochanter ventral view; fig. 4: median apophysis of the fourth area, lateral view; fig. 5 : apical apophysis of the fourth left coxa, inner lateral view. Eopachyloides trochanteralis g .n . , sp.n. , ~ - Fig. 6: Dorsal view; fig. 7 : fourth trochanter ventral view; fig. 8: lateral view of the eye tubercle; fig. 9: lateral view of the areae III and IV; fig. 10: dorsal view of the female.

which there is a dorsal tubercle) curved up­wards; femora short, slightly curved, densely granulate, with some dorsal rows of tuber­cles, with a subapical inner tubercle, with three apical inner close together tubercles, with a large blunt ventral tubercle on the apex; patellae with irregularly distributed small tubercles, and with a strong apical outer spine; tibiae with acute granules ir­regularly distributed, and with two ventral rows of tubercles which increase in size to the apex; metatarsi with piliferous granules.

dian dark yellow band, and with a narrow light yellow subapical annular fleck; sec­ond metatarsi dark brown; third metatarsi dark brown with, an elongate submedian band and with an annular subapical fleck; fourth metatarsi dark brown with, three subapical annular flecks.

Female - Sexual dimorphism great. First area without longitudinal median line. Abdominal scute entirely unarmed. Fourth legs: coxae with minute hair-tipped granula­tions, with a short and wide oblique outer

216 HELIA E. M. SOARES

tubercle on the apex; trochanteres larger than wide, granulate, with a ventral inner

apical spine; femora short, curved granu­late, with an apical inner spine, and with a

ventral median outer tubercle.

Colour similar to that of the male. First,

third and fourth metatarsi without the sub­apical annular flecks exhibited by the male.

Type-Locality: Holotype ~ from Morro do Ferro, June 9, 1964 (J. Becker). Addi­

tional material: a) 3 ~ ~ paratypes from Morro do F~rro, June 9, 1964 (J. Becker);

b) 1 ~ and 1 ~ para types from Morro do Ferro, August 26, 1965 (J. Becker and 0. A. Roppa); c) 1 ~ paratype from Alto da San­ta Cruz, July 31, 1965 ·(J. Becker).

Eusarcus guimaraesi H. Soares

Eusarcus guimariiesi H. Soares, 1945: 211, 216, fig. 5; Soares & Soares, 1954: 260; H. Soares, 1966: 108.

Records- a) 1 ~ from Morro do Fer­

ro, March 4, 1964 (J. Becker and 0. A. Rop­pa); b) 1 ~ and 1 ~ from Fonte dos Amo­res, October 24, 1963 (J. Becker and 0. A. Roppa) (the ~ n.0 273 in "H. Soares" col­lection); c) 1 ~ from Morro Sao Domingos,

October 3, 1963 (J. Becker and 0. A. Roppa)

(n.0 289 in "H. Soares" collection); d) 2 ~ ~ from Morro do Ferro, December 20,

1963 (J. Becker and 0. A. Roppa) (1 ~

n.0 291 in "H. Soares" collection).

SUMMARY

The authoress studies a small lot of Opi­liones from Brazil, State of Minas Gerais, Po~os de Caldas, belonging to the arachno­logical collection of Museu Nacional do Rio de Janeiro. She describes two new genera and two new species all to the family Gony­leptidae, subfamily Pachylinae - Beckeresia beckeri g. n., sp. n. and Eopachyloides tro­chanteralis g. n., sp. n.

REFERENCES

MELLO LEITAO, C. F., 1922, Some new Brazilian Gonyleptidae. Ann. Mag. Nat. Hist., 9 (9): 329--348.

MELLO LEITAO, C. F., 1923, Opiliones Laniatores do Brasil. Arq. Mus. Nac. Rio de Janeiro, 7 (2): 115-118, 4 figs.

MELLO LErTA.o, C. F., 1932, Opilioes do Brasil. Rev. Mus. Paulista, 17 (2.a pte): 1-505, figs. 1-283.

MELLO LEITAO, C. F., 1934, Novos Gonyleptidae nas cole~oes do lnstituto Butanta. Mem. Inst. Bu­tantan, 8 (1933-1934): 409-417.

MELLO LEITAO, C. F., 1935, Alguns novos opilioes do Estado de Sao Paulo e Distrito Federal. Arq. Mus. Nac., Rio de Janeiro, 36 (1934): 9-37.

MELLO LErTA.o, C. F., 1937, Cuatro generos nuevos de Pachylinae. Rev. Chil. Hist. Nat., 41: 149--156, 5 figs ..

MELLO LErTA.o, C. F., 1940, Sete generos e vinte e oito especies de Gonyleptidae. Arq. Zool. Est. Siio Paulo, 1: 1-64.

MELLO LEITAO, c .. F. 1945, Considera~oes sobre 0

genero Eusarcus Perty e descri~ao de quatro novos Laniatores. An. Acad. Brasil. Cienc., 17 (2): 149-162.

ROEWER, L. Fr., 1913, Die Familie der Gonyleptiden der Opiliones Laniatores. Arch. Naturg., 79A (4): 1-256.

ROEWER, C. Fr., 1916, 52 neue Opilioniden. Arch. Naturg., 82A (2): 90-158.

ROEWER, C. Fr., 1923, Die Webercknechte der Erde. IV+ 1116, 1212 figs. Jena.

SoAREs, B. A. M., 1944, Aracnideos de Monte Alegre. Papeis Avulsos Dep. Zool., Siio Paulo, 4 (10): 151-168, 11 figs ..

SoAREs, B. A. M., 1945, Opilioes do Parana. Arq. Mus. Paranaense, 4 (8): 191-206, 4 ests., 8 figs ..

SoAREs, B. A. M. & H. E. M., 1945, Novos opilioes do Departamento de Zoologia da Secretaria da Agricultura do Estado de Sao Paulo. Papeis Avulsos Dep. Zool. Siio Paulo, 5 (27): 251-270, 12 figs.

SoAREs, B. A. M. & SoAREs, H. E. M., 1946, Uma nova especie de Camarana Mello-Leitao, 1935 e al6tipo de Eusarcus montis (Mello-Leitao, 1936) ( Opiliones: Gonyleptidae). Papeis Avul­sos Dep. Zoo!. Siio Paulo, 7 (18) : 221-226, figs. 1-2.

SoAREs, B. A. M. & SoARES, H. E. M., 1948, Mono­grafia dos generos de Opilioes Neotr6picos I. Arq. Zool. Est. Siio Paulo, 5 (9): 553-636.

SoAREs, B. A. M. & SoARES, H. E. M., 1949, Mono­. grafia dos generos de Opilioes Neotr6picos II.

Arq. Zoo!. Est. Siio Paulo, 7 (2): 149-240. SoAREs, B. A. M. & SoAREs, H. E. M., 1954, Mono­

grafia dos generos de Opilioes Neotr6picos III. Arq. Zoo!. Est. Siio Paulo, 8 (9): 225-302.

SoAREs, H. E. M., 1945, Contribui~ao ao estudo dos opilioes da Cole~ao "Otto Schubart". Papeis Avulsos Dep. Zoo!. Sao Paulo, 5 (23) : 209-220, 6 figs ..

SoARES, H. E. M., 1966, Novos opilioes da Cole9ao "Otto Schubart" (Opiliones: Cosmetidae, Go­nyleptidae, Phalangodidae). Papeis Avulsos Dep. Zool. Siio Paulo, 18 (11): 103-115, 9 figs ..

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