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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.

Dorsal view of a Doroneuria baumanni (Perlidae) (Golden Stone) Stonefly Nymph from Swauk Creek in Washington
I'm not aware of any way to tell the two species of Doroneuria apart as nymphs, so this one is classified to species based on location alone. Doroneuria baumanni is found in the Cascades and in Washington, and the other species is not known here yet.
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 Genus Ironoquia (Eastern Box Wing Sedges)

Where & when

Time of year : Fall

These species enter diapause during the summer to synchronize their fall emergence.

In 61 records from GBIF, adults of this genus have mostly been collected during September (34%), August (28%), October (23%), and July (8%).

In 21 records from GBIF, this genus has been collected at elevations ranging from 16 to 4117 ft, with an average (median) of 2592 ft.

Genus Range

Egg-Laying behavior

Time of day: Evening; earlier when cooler

Larva & pupa biology

Diet: Leaves, algae

Specimens of the Caddisfly Genus Ironoquia

1 Adult

Start a Discussion of Ironoquia

References

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

Caddisfly Genus Ironoquia (Eastern Box Wing Sedges)

Taxonomy
Species in Ironoquia: Ironoquia lyrata, Ironoquia parvula
2 species (Ironoquia kaskaskia and Ironoquia punctatissima) aren't included.
Genus Range
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