Blue-winged Olives
Baetis
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.
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This one seems to lead to Couplet 35 of the Key to Genera of Perlodidae Nymphs and the genus Isoperla, but I'm skeptical that's correct based on the general look. I need to get it under the microscope to review several choices in the key, and it'll probably end up a different Perlodidae.
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Caddisfly Species Platycentropus radiatus (Chocolate and Cream Sedges)
Trout are fond of the larvae and pupae of this mostly nocturnal species.
Where & when
Preferred waters: Stillwaters and medium to large streams
In 104 records from GBIF, adults of this species have mostly been collected during June (27%), July (27%), August (16%), and October (11%).
In 32 records from GBIF, this species has been collected at elevations ranging from 10 to 16404 ft, with an average (median) of 1125 ft.
Species Range
Larva & pupa biology
Environmental tolerance: Quite tolerant of warm water
Start a Discussion of Platycentropus radiatus
References
- LaFontaine, Gary. 1981. Caddisflies. The Lyons Press.
- Swisher, Doug and Carl Richards. 2000. Selective Trout. The Lyons Press.
Caddisfly Species Platycentropus radiatus (Chocolate and Cream Sedges)
Species Range
Resources
- NatureServe
- Integrated Taxonomic Information System
- Global Biodiversity Information Facility
- Described by Say (1824)