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.
In 99 records from GBIF, adults of this genus have mostly been collected during June (48%), July (34%), and August (12%).
In 34 records from GBIF, this genus has been collected at elevations ranging from 618 to 5003 ft, with an average (median) of 3133 ft.
Time of day: Twilight to late night
Current speed: Slow to Medium
Substrate: Detritus over sand, gravel, or silt
Environmental tolerance: They have an unusually high tolerance for warm, shallow water.