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 Hydropsyche slossonae (Spotted Sedges)
Where & when
This widely distributed species is most common in the Midwest, where it is one of the most important species of Hydropsychidae.In 72 records from GBIF, adults of this species have mostly been collected during July (32%), June (25%), May (21%), and August (17%).
In 27 records from GBIF, this species has been collected at elevations ranging from 10 to 4675 ft, with an average (median) of 1921 ft.
Species Range
Start a Discussion of Hydropsyche slossonae
Caddisfly Species Hydropsyche slossonae (Spotted Sedges)
Species Range
Common Name
Resources
- NatureServe
- Integrated Taxonomic Information System
- Global Biodiversity Information Facility
- Described by Banks (1905)