The thorax in the housefly carries three pairs of legs.
Where is thorax situated in a fly?
Flies have a pair of fully developed wings on the thorax, and a knobby, vestigial second pair of wings, called halters, is used primarily for balance. The fly’s six legs also connect to the thorax and are made of five segments. The common housefly liquefies food with its saliva before the mouthparts are used in sponging. The fly’s six legs also connect to the thorax and are made of five segments. A stiff cuticle covers the thorax in the mature fly. The three pairs of legs are attached to the thorax’s underside, and the two wings are attached to the top of the thorax’s sidewalls.