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 148 records from GBIF, adults of this genus have mostly been collected during April (31%), June (26%), May (20%), July (11%), and March (8%).
In 37 records from GBIF, this genus has been collected at elevations ranging from 3 to 8871 ft, with an average (median) of 2969 ft.
Time of day: Afternoon and evening
Habitat: Medium to fast water
Current speed: Slow
Substrate: Silt, detritus, leaf drift