Noun | 1. | ![]() animal order - the order of animals class Hexapoda, class Insecta, Hexapoda, Insecta - insects; about five-sixths of all known animal species hemipteran, hemipteron, hemipterous insect, bug - insects with sucking mouthparts and forewings thickened and leathery at the base; usually show incomplete metamorphosis family Tingidae, Tingidae - lace bugs family Lygaeidae, Lygaeidae - lygaeid bugs Coreidae, family Coreidae - squash bugs and leaf-footed bugs Cimicidae, family Cimicidae - wingless flat-bodied bloodsucking insects family Notonectidae, Notonectidae - aquatic carnivorous insects Heteroptera, suborder Heteroptera - true bugs Homoptera, suborder Homoptera - plant lice (aphids); whiteflies; cicadas; leafhoppers; plant hoppers; scale insects and mealybugs; spittle insects |