Terminal flat-headed mayfly

Mayfly in the family Heptageniidae. Lives near water. Its aquatic larva feeds on fine particles gathered from the bottom and algae scraped off submerged surfaces.

There are 25 observations of Terminal flat-headed mayfly in Québec, mostly in Montréal, Capitale-Nationale and Chaudière-Appalaches, and it has been reported in 7 of the 17 regions. They peak in June and August and become rare from October to May.