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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

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 Chyranda centralis (Pale Western Stream Sedges)

Where & when

Time of year : Mid-July to October

Preferred waters: Small streams

This is a common species across the West.

In 45 records from GBIF, adults of this species have mostly been collected during August (51%), July (33%), June (7%), and September (7%).

In 51 records from GBIF, this species has been collected at elevations ranging from 156 to 11201 ft, with an average (median) of 6726 ft.

Species Range

Hatching behavior

Time of day : Evening

Egg-Laying behavior

Time of day: Evening

Start a Discussion of Chyranda centralis


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

Caddisfly Species Chyranda centralis (Pale Western Stream Sedges)

Species Range
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