Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.
Preferred waters: Small mountain streams
In 56 records from GBIF, adults of this genus have mostly been collected during June (30%), July (27%), August (14%), April (11%), May (9%), and October (5%).
In 23 records from GBIF, this genus has been collected at elevations ranging from 1709 to 10322 ft, with an average (median) of 6713 ft.
Environmental tolerance: Requires cold water