Coleoptera
Beetles. 2 pairs of wings- front pair is chitinous (hardened by chitin) and shields the back pair when not flying
Diptera
Flies, mosquitoes. 1 pair of membranous wings
Hemiptera
The true "bugs". 2 pairs of wings- front half of pair is chitinous
Hymenoptera
Ants, bees, wasps. 2 pairs of membranous wings; abdomen of most female has stinging organ; live in social colonies
Isoptera
Termites, Reproductive adults of some species have two pairs of membranous wings(other species are wingless); live in social colony
Lepidoptera
Moths, butterflies. 2 pairs of wings covered with tiny scales
Odonata
Drangonflies, damselflies. Two pair of wings; large compound eyes and almost 360 vision
Orthoptera
Crickets, grasshoppers. 2 pairs of wings; back pair of legs usually enlarged and functions in jumping
