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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.

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 Limnephilus submonilifer (Summer Flier Sedges)

Where & when

Preferred waters: Rivers and spring ponds

This species can be extremely abundant, especially in spring ponds. In Caddisflies, Gary LaFontaine described the larvae in some New Hampshire spring ponds as "so plentiful there that they cover the bottom."

In 142 records from GBIF, adults of this species have mostly been collected during June (22%), May (20%), September (20%), October (11%), April (9%), August (6%), and July (6%).

In 89 records from GBIF, this species has been collected at elevations ranging from 20 to 5075 ft, with an average (median) of 778 ft.

Species Range

Larva & pupa biology

Current speed: Still to slow


Start a Discussion of Limnephilus submonilifer

References

Caddisfly Species Limnephilus submonilifer (Summer Flier Sedges)

Taxonomy
Species Range
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