Larva of Fly

A maggot is the larva of a fly (order Diptera); it is applied in particular to the larvae of Brachyceran flies, such as houseflies, cheese flies, and blowflies,[1] rather than larvae of the Nematocera, such as mosquitoes and Crane flies. "Maggot" is not a technical term and should not be taken as such; in many standard textbooks of entomology it does not appear in the index at all.[2][3] In many non-technical texts the term is used for insect larvae in general. Other sources have coined their own definitions; for example: "... The term applies to a grub when all trace of limbs has disappeared ..."[4] and "...Applied to the footless larvae of Dipters."[5]

Maggot-like fly larvae are of wide importance in ecology and medicine; among other roles, various species are prominent in recycling carrion and garbage, attacking crops and foodstuffs, spreading microbial infections, and causing myiasis.