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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 Amphizoa (Amphizoidae) Beetle Larva from Sears Creek in Washington
This is the first of it's family I've seen, collected from a tiny, fishless stream in the Cascades. The three species of this genus all live in the Northwest and are predators that primarily eat stonefly nymphs Merritt R.W., Cummins, K.W., and Berg, M.B. (2019).
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 Dolophilodes (Medium Evening Sedges)

Dolophilodes distinctus is the most interesting and important species in this genus, having a bizzarre life cycle. It is also the most abundant in the East and Midwest. The other species listed here are from the West.

Where & when

Preferred waters: Small mountain streams

In 56 records from GBIF, adults of this genus have mostly been collected during June (30%), July (27%), August (14%), April (11%), May (9%), and October (5%).

In 23 records from GBIF, this genus has been collected at elevations ranging from 1709 to 10322 ft, with an average (median) of 6713 ft.

Genus Range

Larva & pupa biology

Environmental tolerance: Requires cold water

Specimens of the Caddisfly Genus Dolophilodes

1 Male Adult
1 Female Adult
1 Adult
2 Larvae

Discussions of Dolophilodes


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References

Caddisfly Genus Dolophilodes (Medium Evening Sedges)

Taxonomy
3 species (Dolophilodes andora, Dolophilodes columbia, and Dolophilodes dorcus) aren't included.
Genus Range
Common Name
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