Term | Definition |
Order Collembola | Antennae with four to six segments; compound eyes absent; abdomen with six segments, most with springing appendage on fourth segment; inhabit soil and leaf litter. |
Order Thysanura | Tapering abdomen; flattened; scales on body; terminal cerci; long antennae; ametabolous metamorphosis. |
Order Odonata | Elongate, membranous wings with netlike venation; abdomen long and slender; compound eyes occupy most of head; hemimetabolous metamorphosis. |
Order Orthoptera | Forewing long, narrow, and leathery; hindwing broad and membranous; chewing mouthparts; hemimetabolous metamorphosis. |
Order Dermaptera | Elongate; chewing mouthparts; threadlike antennae; abdoment with unsegmented forcepslike cerci; hemimetabolous metamorphosis. |
Order Isoptera | Workers white and wingless; front and hindwings of reproductives of equal size; reproductives and some soldiers may be sclerotized; abdomen broadly joins thorax; social; hemimetabolous metamorphosis. |
Order Coleoptera | Forewings sclerotized, forming covers (elytra) over the abdomen; hindwings membranous; chewing mouthparts; the largest insect order; holometaboulous metamorphosis. |
Order Hemiptera | True Bugs. Piercing-sucking mouthparts; mandibles and first maxillae styletlike and lying in grooved labiam; wings membranous; hemimetabolous metemorphosis. |
Order Lepidoptera | Wings broad and covered with scales; mouthparts formed into a sucking tube; holometabolous metamorphosis. |
Order Diptera | Mesothoracic wings well developed; metathoracic wings reduced to knoblike halteres; variously modified but never chewing mouthparts; holometabolous metamorphosis. |
Order Hymenoptera | Wings membranous with few veins; well-developed ovipositor, sometimes modified into a sting; mouthparts modified for biting and lapping; social and solitary species; holometabolous metamorphosis. |
Order Siphonaptera | Laterally flattened, sucking mouthparts; jumping legs; parasites of birds and mammals; holometabolous metamorphosis. |
Order Siphonaptera | Fleas |
Order Hymenoptera | Ants, bees, wasps |
Order Diptera | Flies |
Order Lepidoptera | Moths, butterflies |
Order Hemiptera | Bugs, cicada, leafhoppers, aphids |
Order Coleoptera | Beetles |
Order Isoptera | Termites |
Order Dermaptera | Earwigs |
Order Orthoptera | Grasshoppers, crickets, katydids |
Order Odonata | Dragonflies, damselflies |
Order Thysanura | Silverfish |
Order Collembola | Springtails |