Posted by John Carr on 15-03-2017 14:21
#2
Do you know what host it came from, or if it is a fungus feeder?
_The Plant Feeding Gall Midges of North America_ has a key to larvae of the plant-feeding gall midges of North America. The key mostly relies on host association. Otherwise I think the information is scattered among many publications. Gagne's review of Nearctic Cecidomyiidi describes larvae of some genera, but does not have a key to larvae.