Modest flat-headed mayfly

Mayfly in the family Heptageniidae. Lives near water. Its aquatic larva feeds on algae scraped off submerged surfaces.

There are 28 observations of Modest flat-headed mayfly in Québec, mostly in Laurentides, Montréal and Mauricie, and it has been reported in 7 of the 17 regions. They peak in July and August.