Lab final -Lab 4 Flashcards
Elongated head with long prothorax; Female with long slender ovipositor; forelegs located on posterior end of prothorax; predaceous
Raphidioptera (snakeflies)
Medium to large insects, usually dark coloured. 2 pairs of membranous wings of similar size, held roof-like over body. Wing venation complex but without forked branching near wing margin. Larvae are active predators. Adults are short-lived and rarely feed
Order Megaloptera
Very large (usually over 25 mm). Large wings often with dark patches; highly veined; Large mandibles, extra long and curved in males. Long filiform or moniliform antennae
Megaloptera
Dobsonflies
Similar to dobsonflies but smaller and with short mandibles in both sexes. Antennae pectinate or serrate. some species have black wings
Larvae: aquatics. Large mandibles, lateral tactile filaments on most abdominal segments and tufts of gills on ventro-lateral side of abdomen
Megaloptera
Fishflies
Four membranous wings, with distinctive wing patterns with extra forked branches mainly found at the ventral margin of the wings. Front and hind wings similar in shape and venation and held rooflike over body. Chewing mouthparts. Long filiform antennae. Predaceous.
Order Neuroptera
Most are greenish in color with copper-colored eyes, long filiform antennae. Larvae are called aphidlions. They have long curved mandibles and are predaceous mainly on aphids.
Order Neuroptera Family Chrysopidae (Lacewings)
Similar to mantids, with long prothorax and raptorial forelegs . But smaller and different wings (no tegmina).
Order Neuroptera Family Mantispidae (Mantispids
Similar to damselflies but with long clubbed antennae. Long slender abdomen.
Larvae with long mandibles. Feed on ants or other insects.
Order Neuroptera Family Myrmeleontidae (antlion)
Four wings, similar in shape, often with dark markings. Head with chewing mouthparts at the end of long snout. Mainly predaceous or scavengers on dead insects
Order Mecoptera
Tarsi with 2 claws. Male genitalia enlarged and recurved resembling the sting of a scorpion. Female’s abdomen flattened posteriorly
Order Mecoptera
Scorpionflies
Long slender legs with modified tarsal segments to hang on branches and to catch prey. Narrow wings. Tarsi raptorial (fifth tarsi folded over fourth)
Order Mecoptera
Hangingflies
Very small. Extreme sexual dimorphism:
Adult males are free living, they have large membranous wings on metathorax, front wings reduced to halter-like structures. Large eyes. Branched antennae (flabellate).
Adult females are parasitic. They are wingless, they lack eyes, antennae and legs. The head and thorax are fused (forming a cephalothorax as in spiders). Only the cephalothorax emerges from host.
Order Strepsiptera (twisted wing parasites)
Small, wingless, laterally flattened with numerous comb-like projecting spines and bristles. Shiny brown or black. Long jumping hindlegs: with coxae greatly enlarged. Short antennae, in grooves of head. Sucking mouthparts, eyes present or absent. Feed on blood in adult stage and on organic matter as larvae. Adults are external parasites of birds and mammals.
Order Siphonaptera (fleas)
Predaceous. Aquatic. Hind legs flattened and fringed for swimming, smooth, broadly oval body, long filiform antennae; longer than maxillary palps.
Some species have sexually dimorphic front legs - males have a sucker for gripping females during mating.
Order Coleoptera Family Dytiscidae (predaceous diving beetles)
Predaceous. Aquatic. Smooth, oval shaped body, middle and hind legs very short, flattened and paddlelike for swimming, eyes divided on each side - one pair above surface, one pair below - specialize for surface swimming. Short, somewhat clubbed antennae.
Order Coleoptera Family Gyrinidae (Whirligig beetles
Predaceous. Terrestrial. Legs adapted for running, head (at eye level) usually narrower than pronotum. Antennae filiform, arising between base of mandibles and eye
Order Coleoptera Family Carabidae (ground beetles)
Predaceous. Terrestrial. Have the head usually as wide or wider than pronotum, mandibles long and sickle-like
Order Coleoptera Subfamily Cicindelinae (tiger beetles)
Predaceous, terrestrial. Body elongated, flattened with soft elytra. Broad pronotum, covers head. Antennae filiform, serrate or bipectinate
Order Coleoptera Family Lampyridae (fireflies)
Distinctive shape and colour (mostly red, orange, some yellow, some black). Head often concealed by pronotum, short clubbed antennae. Tarsi apparently 3-3-3 (forelegs, midlegs, hindlegs) (but actually 4-4-4)
Order Coleoptera Family Coccinellidae (ladybird beetles)
Phytophagous. Head prolonged into a snout - mouthparts at end. Antennae often elbowed and clubbed, often arising in the middle of the snout. Elytra hard, well sclerotized.
Order Coleoptera Family Curculionidae (Weevils)