hoverflies, mosquitoes and others.

Flies have a mobile head, with a pair of large compound eyes, and mouthparts designed either for piercing and sucking (in mosquitoes, black flies, and robber flies) or for lapping and sucking (in the other groups). Their wing arrangement gives them great manoeuvrability in flight, and claws and pads on their feet enable them to cling to smooth surfaces. Flies undergo complete metamorphosis;