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.
Featured on the forum
This specimen resembled several others of around the same size and perhaps the same species, which were pretty common in my February sample from the upper Yakima. Unfortunately, I misplaced the specimen before I could get it under a microscope for a definitive ID.
Troutnut is a project started in 2003 by salmonid ecologist Jason "Troutnut" Neuswanger to help anglers and
fly tyers unabashedly embrace the entomological side of the sport. Learn more about Troutnut or
support the project for an enhanced experience here.
Caddisfly Species Brachycentrus occidentalis (Mother's Day Caddisflies)
Gary LaFontaine tells the story in Caddisflies of how this species came to awareness through rumors of a widespread, intense hatch of an undentified brown and green caddisfly throughout the West. He traveled across the West collecting these flies and determined that they were Brachycentrus occidentalis.
Where & when
Time of year : Late April and early May
In 36 records from GBIF, adults of this species have mostly been collected during June (33%), May (31%), April (22%), and September (6%).
In 15 records from GBIF, this species has been collected at elevations ranging from 66 to 19029 ft, with an average (median) of 5367 ft.
Species Range
Start a Discussion of Brachycentrus occidentalis
References
- LaFontaine, Gary. 1981. Caddisflies. The Lyons Press.
- Swisher, Doug and Carl Richards. 2000. Selective Trout. The Lyons Press.
Caddisfly Species Brachycentrus occidentalis (Mother's Day Caddisflies)
Species Range
Common Names
Resources
- NatureServe
- Integrated Taxonomic Information System
- Global Biodiversity Information Facility
- Described by Banks (1911)