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Important Insect Orders
•Depending upon which textbook you use, there are 25-30 Insect Orders
•A few less common Orders are not listed
•A few more common Orders are listed
•Those I expect you to know have **
CLASSIFICATION CATEGORIES
Kingdom: AnimalPhylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Scolytidae
Genus: Dendroctonus
Species: frontalis
Scientific name: Dendroconus frontalis
Common name: Southern pine beetle
Collembola -Springtails
** Order Ephemeroptera - Mayflies “short-lived wings”
** Order Odonata Dragonflies and Damselflies
Order Plecoptera - stoneflies
** Order Dictyoptera: cockroaches, praying mantids and termites
PreyingMantid
Termite workers and damage to wooden structure
Termite queenand workers
** Order Orthoptera: grasshoppers
Order Dermaptera: earwigs
Order Psocoptera: booklice, barklice
Gradual Metamorphosis
Psocopterawebcoveringoak tree
** Order Hemiptera:
These are the true bugs, Cicadas, aphids, scales and spittlebugs
Gradual Metamorphosis
Hemiptera
Leaf footed bug
Periodical Cicada: 13 yr
Asian Woolly Hackberry Aphid
Order Thysanoptera: Thrips “fringe wing”
Order Phthiraptera:
These are the chewing and sucking lice. Tend to be parasites on other animals.
Bird louse
Head Louse Pubic Louse
Order Neuroptera: Lacewings“nerve wing”
** Order Coleoptera: Beetles “sheath wing”
Goliath beetles
Order Mecoptera: Scorpionflies“long wing”
Order Trichoptera: Caddisflies“hair wing”
Caddisfly cases
** Order Lepidoptera: Moths & Butterflies “scale wing”
** Order Hymenoptera: Bees, Wasps, Ants & Sawflies “membrane wing”
Killer beesare Hymenoptera
Sawfliesare Hymenoptera
larva
adult
** Order Diptera: True Flies“two wing”
** Order Siphonaptera: Fleas“tube without wing”
Questions to answer for Basic Entomology:
1) What are the major characteristics of the phylum Arthropoda? What are the basic differences that separate the Chelicerata and Mandibulata?
2) Why are arachnids important?3) What is the most basic type of insect mouthparts? List the other specialized types of mouthparts and give examples of insects that have each type.4) What morphological characteristics separate the class Insecta from other
members of the phylum Arthropoda?5) What are tagma?6) How does the insect respiratory system differ from that of humans?7) What is the primary function of the insect brain? How does that differ from
humans?8) What is metamorphosis? List the four basic types of metamorphosis, with
an example of an insect group that has each type.9) Why do you think entomologists believe the development of complete metamorphosis was so important?10) Define the terms, Instar and generation.11) What are the basic characteristics of the orders, Collembola, Ephemeroptera, Plecoptera, Dictyoptera, Orthoptera, Hemiptera, Thysanoptera, Coleoptera, Neuroptera, Trichoptera, Lepidoptera, Hymenoptera and Diptera?
