How many wings does a typical insect have?

A typical winged insect has four wings, arranged as two pairs on the thorax. The front pair is attached to the mesothorax and the hind pair to the metathorax, although their shapes and functions vary widely among insect groups.

Butterflies and moths have four large, often scale-covered wings, while dragonflies have four independently controlled transparent wings. Beetles also have four wings, but the front pair is hardened into protective covers called elytra; the hind pair unfolds for flight.

Four is the standard classroom answer, but it describes the usual winged body plan rather than every insect. Some insects are wingless, including fleas and worker ants, and true flies such as houseflies have only one functional pair. In flies, the hind wings evolved into tiny balancing organs called halteres. Thus, “typical” matters: insect diversity includes several important exceptions.