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.
This genus has been proposed off and on for years. For reasons beyond the scope of this hatch page to explain, it briefly had most of the important species of the most important genus Hydropsyche in its fold. They have all been moved back and the name Ceratopsyche is no longer valid.
Where & when
In 674 records from GBIF, adults of this genus have mostly been collected during June (30%), July (21%), August (17%), May (16%), and September (7%).
In 385 records from GBIF, this genus has been collected at elevations ranging from 3 to 10007 ft, with an average (median) of 1781 ft.
Jason: What species', in common angler language, are represented in this genus? I'm trying to determine which ones I should spend my time on imitating them. Are they October Caddis, Grannom Caddis, etc. Are those afore mentioned sedges? I would like to know the names so I can tie them the correct size and colors. Just trying to learn. Thanks