1) Common bait 2) Fruit fly larvae 1) Larvae 
Flies lay eggs that hatch out as maggots. These can be seen in canned food that is left out on a hot day. Maggots may also infest wounds that have been neglected.
the young of certain flies
the common name given to the larvae of some species of true fly (Diptera).
the larvae of flies which are wormlike in appearance and which live in decaying matter