REN R205 Study Guide - Final Guide: Elytron, Ground Beetle, Whirligig Beetle

• School: University of Alberta
• Department: Renewable Resources
• Course: REN R205
• Professor: John Acorn

Document Summary

Estimated 800 000 to 30 000 000 insect species worldwide and more being discovered all the time! Insects currently represent ~56% of all known organisms. Holometabola: complete metaphorsis, an egg, larval, pupal and adult stage in the course of their life history. Pronotum: plate-like structure, covers part of or all of the thorax the first segment of the thorax. Elytra/shard: modified, hardened forewing (front pair of wings) Just a simplified classification, not suborder or order or anything. Infraorders complicated, not real infraorders made up based on some trait. 2 pairs of membranous wings and long antennae females have long ovipositor. Adults are short lived (~8 days) do not usually feed. Enlarged fan-folded anal area of hind wing. Adult males have large mandibles in many species. Prey are impaled on the pincers and contents are sucked out. Ant lion larvae build pitfall traps in the soil to catch prey. 1 of every 4 named animals is a beetle.