insect orders Flashcards
Larvae and adults have eyespots
segmented legs
abdominal tube
abdominal furca
Collembola (Springtails)
develop through larva, subimago, imago
2-3 cerci
gills on abdomen
hindwings smaller than forwings on adults
wings when rested come together high on top of the abdomen
Ephemeroptera (Mayflies)
develop through larvae to adults segmented legs compound eyes hinged labium adults have long slender abdomen and wings either held above or beside the body
Odonata (Dragonflies and Damselflies)
develop through larva to adults 2 cerci only gills along thoracic, if present segmented legs compound eyes Long antennae in adults with wings folded over the abdomen
Plecoptera (Stoneflies)
Larvae and adults with conspicuous antennae and large hind femora for jumping
Orthoptera (grasshoppers)
Oval body
head hidden in dorsal view
wings sometimes present and reduced in females
most are tropical or oriental
Blattodea (cockroaches)
Larva and adults have conspicuous antennae and abdominal forceps
most commonly found along the coast
Dermaptera (earwigs)
antennae conspicuous or hidden
beak-like mouthparts
bases of adult forewings leathery
Hemiptera-Heteroptera (bugs)
Develop through larva, pupa, to adults
larva have eyespots, segmented legs, 7-8 pairs of abdominal filaments, 2 anal hooks OR caudal filament
adults have conspicuous antennae with many crossveins along forewing front margins
Megaloptera (hellgrammites/dobsonflies/alderflies)
Develop through larvae, pupa, to adult
larvae have eyespots and style like mandibles
pupa are terrestrial in double cocoon
adults have very small mandibles and look megaloptera-like
Neuroptera (spongillaflies)
develop through larva, pupa, to adult
larva have eyespots, inconspicuous antennae, segmented legs, and 1 pair of anal hooks
pupa have large mandibles
adults have long antennae and palps with hairy wings held roof-like
Trichoptera (caddisflies)
develop through larva, pupa, to adult
larva have eyespots, segmented legs, and are found in plants
pupa are also in plants
adults have coiled proboscis and colorful, scaly wings
Lepidoptera (caterpillars/moths)
develop through larva, pupa, to adult
larva have eyespots, segmented legs, no anal hooks, or 4 hooks or 2 hooks with hard coverings
pupa are terrestrial
adults have antennae that can be short or long with hard elytra
Coleoptera (Beetles)
develop through larva, pupa, to adult
larva can have a conspicuous head or not and no segmented legs
pupa have prothoracic spiracular gills
adults have 1 pair of wings and 1 pair of halters
Diptera (flies)
Develop through larva, pupa, to adult
larva have inconspicuous eyes and antennae with an indistinguishable thorax and no segmented legs
parasitic
adults have conspicuous antennae with transparent wings, hindwings smaller than forewings
Hymenoptera (wasps)
