Insect Identification Flashcards
elongage & cylindrical to compact & spherical; internal mouthparts; furcola & collophore
Collembola (Springtails)
loss of eyes; long multi-segmented antennae; internal mouthparts; 2 cerci - filiform or forceps-like
Diplura (Two-pronged bristletails)
antennae absent; legs act as antennae; internal mouthparts
Protura (Coneheads)
dorso-ventrally flattened (5-30 mm in length); 3 terminal filaments (medial caudal appendage; 2 lateral cerci)
Zygentoma (Silverfish)
dorso-ventrally flattened; humped thorax (6-25 mm in length); three terminal filaments (2 short lateral cerci; medial caudal appendage)
Archaeognatha (Bristletails)
clear head, thorax, abdomen with: clear walking legs; immatures typically have 3 (sometimes 2) terminal filaments; adults = wings (held upright above the body)
Ephemeroptera (Mayflies)
wings = held upright (damselflies), held to side (dragonflies); complex arrangement of wing veins; prominent eyes (typically surrounding the head); large thorax; elongate abdomen
Odonata (dragonflies & damselflies)
2 sets of wings; forewings are enlarged with extensive venation and are somewhat thickened (tegmina); hind legs enlarged for jumping
Orthoptera (grasshoppers, crickets)
day active, fast moving herbivores orthoptera; moving the hind leg across the folded front wing to make sound
Caelifera (grasshoppers)
night-active, predators & herbivores orthoptera; front wing has teeth that rasp when shuffled across a scraper on the other front wing
Ensifera (crickets)
forcep-like cerci; short tegmina
Dermptera (earwigs)
most with two pairs of large membranous wings; generally two cerci; some have tracheal gills
Plecoptera (stoneflies)
wings are tegmina; enlarged pronotum; overlapping generations; caste system
Blattodea (cockroaches and termites)
elongate pronotum; wings lay flat; raptorial forelegs
Mantodea (praying mantis)
large body with compact cylindrical body or with conspicuous camouflage mechanisms; mimicking branches, twigs and leaves; often sexually dimorphic - males smaller than females
Phasmatodea (walking sticks and leaves)