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: Extremely small streams
Altitude: High
In 112 records from GBIF, adults of this genus have mostly been collected during July (31%), June (28%), May (19%), and August (11%).
In 72 records from GBIF, this genus has been collected at elevations ranging from 128 to 9219 ft, with an average (median) of 3730 ft.