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 was surprisingly straightforward to identify. The lack of a sclerite at the base of the lateral hump narrows the field quite a bit, and the other options followed fairly obvious characteristics to Clostoeca, which only has one species, Clostoeca disjuncta.
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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)