Regional variation note
Examples from the Web for wiggler
Make drawings of the different stages, wiggler, pupa and mosquito.
When the wiggler is full grown it changes to an active pupa which has a large head and a slender tail and is more or less coiled.
Learn something new every time you look at the wiggler or the mature mosquito.Cornell Nature-Study Leaflets|Various
It must be floated on the water at first, or until it reaches the point of development into a wiggler.Life: Its True Genesis|R. W. Wright
When a Wiggler is old enough for this, he is called a Pupa, or half-grown one.Among the Night People|Clara Dillingham Pierson