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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

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 Lepidostoma podagrum (Little Brown Sedges)

This species can be distinguished from other Lepidostoma by its swollen & scaly foretibiae. This is an important species in some western locales and often precipitates excellent angling opportunities. See the Lepidostoma genus hatch page for information on habitat and life history.

Where & when

In 30 records from GBIF, adults of this species have mostly been collected during June (23%), April (17%), May (17%), September (13%), October (13%), and March (10%).

In 2 records from GBIF, this species has been collected at elevations of 3940 and 6604 ft.

Species Range

Specimens of the Caddisfly Species Lepidostoma podagrum

1 Male Adult
1 Female Adult
2 Larvae

Start a Discussion of Lepidostoma podagrum

Caddisfly Species Lepidostoma podagrum (Little Brown Sedges)

Species Range
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