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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 Neophylax rickeri (Brown Dot Sedges)

There is a study on the life history of this species in the North American Benthological Society abstracts.

Where & when

Time of year : September through November

Many of the larvae are full-grown by mid- to late Spring and they enter a period of diapause until it's time to pupate and emerge in the fall.

In 10 records from GBIF, adults of this species have been collected during October (60%), September (20%), March (10%), and November (10%).

In 2 records from GBIF, this species has been collected at elevations of 492 and 722 ft.

Species Range

Egg-Laying behavior

The females land on rocks in riffles and crawl underwater to lay their eggs on the downstream side.

Start a Discussion of Neophylax rickeri

References

Caddisfly Species Neophylax rickeri (Brown Dot Sedges)

Taxonomy
Species Range
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