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
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 Chimarra aterrima (Little Black Sedges)
This species produces heavy hatches throughout its range, where it is both abundant and important. It is better known in the Midwest.
Where & when
In 115 records from GBIF, adults of this species have mostly been collected during June (23%), May (21%), July (16%), August (15%), April (10%), and September (7%).
In 34 records from GBIF, this species has been collected at elevations ranging from 59 to 2648 ft, with an average (median) of 525 ft.
Species Range
Start a Discussion of Chimarra aterrima
References
- LaFontaine, Gary. 1981. Caddisflies. The Lyons Press.
- Swisher, Doug and Carl Richards. 2000. Selective Trout. The Lyons Press.
Caddisfly Species Chimarra aterrima (Little Black Sedges)
Species Range
Common Names
Resources
- NatureServe
- Integrated Taxonomic Information System
- Global Biodiversity Information Facility
- Described by Hagen (1861)