Larva: Dobsonfly larvae (75 to 90 mm in length) are light brown and darkened by a covering of dark brown microspines (Neunzig and Baker ). The thoracic.
Dobsonflies are a subfamily of insects, Corydalinae, part of the Megalopteran family Corydalidae. The larvae (commonly called hellgrammites) are aquatic, living.
The eastern dobsonfly, Corydalus cornutus, is a large insect in the Corydalidae family. It is found in eastern North America in regions with fast-flowing streams where its aquatic larvae.
Dobsonflies begin life as aquatic larvae before graduating to status as an airborne insect. They feed on tadpoles, small fish, and other young.