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Lateral view of a Male Baetis (Baetidae) (Blue-Winged Olive) Mayfly Dun from Mystery Creek #43 in New York
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.

Lateral view of a Onocosmoecus (Limnephilidae) (Great Late-Summer Sedge) Caddisfly Larva from the Yakima River in Washington
This specimen keys pretty easily to Onocosmoecus, and it closely resembles a specimen from Alaska which caddis expert Dave Ruiter recognized as this genus. As with that specimen, the only species in the genus documented in this area is Onocosmoecus unicolor, but Dave suggested for that specimen that there might be multiple not-yet-distinguished species under the unicolor umbrella and it would be best to stick with the genus-level ID. I'm doing the same for this one.
27" brown trout, my largest ever. It was the sub-dominant fish in its pool. After this, I hooked the bigger one, but I couldn't land it.
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Caddisfly Species Ceraclea tarsipunctata (Scaly-Wing Sedges)

Where & when

Time of year : May and June

In 95 records from GBIF, adults of this species have mostly been collected during June (32%), July (26%), August (21%), and May (18%).

In 16 records from GBIF, this species has been collected at elevations ranging from 480 to 3533 ft, with an average (median) of 1781 ft.

Species Range

Start a Discussion of Ceraclea tarsipunctata

References

  • LaFontaine, Gary. 1981. Caddisflies. The Lyons Press.

Caddisfly Species Ceraclea tarsipunctata (Scaly-Wing Sedges)

Taxonomy
Species Range
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