from
The Collaborative International Dictionary of English v.0.48
Diptera \Dip"te*ra\, n. pl. [NL., fr. Gr. ? with two wings, di-
= di`s- twice + ? feather, wing: cf. F. dipt[`e]re.] (Zool.)
An extensive order of insects having only two functional
wings and two balancers, as the house fly, mosquito, etc.
They have a suctorial proboscis, often including two pairs of
sharp organs (mandibles and maxill[ae]) with which they
pierce the skin of animals. They undergo a complete
metamorphosis, their larv[ae] (called maggots) being usually
without feet.
[1913 Webster]