wing (
wings) noun - membranaceous, reticulated (having numerous lines, like a net) instruments of flight, attached laterally to the
thorax. Among invertebrates, wings are a characteristic feature of the
Pterygota (winged
insects), though some groups have lost them secondarily. Most members of "Pterygota" have two pairs (4) wings:
hindwings (reduced or lacking in some groups)--attached to the
metathorax
Coleoptera (beetles)--forewings are hardened, called
elytra
Orthoptera (grasshoppers and allies),
Dermaptera (Earwigs)--forewings called
tegmina
Diptera (flies)--hindwings are reduced to knobs, called
halteres