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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 Brachycentrus lateralis (Striped Grannoms)

Gary LaFontaine describes this as a "sister species" of Brachycentrus numerosus. It is similar in most respects except that it emerges a couple weeks later.

Where & when

Time of year : Late May or early June

In Selective Trout, Swisher and Richards note that this is an important spring hatch in Michigan.

In 21 records from GBIF, adults of this species have mostly been collected during June (48%), May (29%), and April (14%).

In 2 records from GBIF, this species has been collected at elevations of 978 and 1096 ft.

Species Range

Start a Discussion of Brachycentrus lateralis

References

Caddisfly Species Brachycentrus lateralis (Striped Grannoms)

Taxonomy
Species Range
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