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Caddisfly Species Brachycentrus americanus (American Grannom)

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Where & When


Regions: East, Midwest, West

Time Of Year (?): July and August

This species is most prolific in the West and Midwest, but it may still be of concern to fishermen in the East.

Hatching Behavior


Time Of Day (?): Morning

Special thanks to Lloyd Gonzales, author of the excellent new book Fly-Fishing Pressured Water, for helping to sort out the Brachycentrus species and common names.

Pictures of 1 Caddisfly Specimen in the Species Brachycentrus americanus:

Female Brachycentrus americanus (American Grannom) Caddisfly AdultFemale Brachycentrus americanus (American Grannom) Caddisfly Adult View 1 PicturesSize 11 mm. Prior to this photo the specimen dropped its large egg mass that was a very dark (almost black) olive sphere almost twice the diameter of the abdomen. Notice the abdomen visible through the wings is both thickened and shortened post egg drop.
Collected October 15, 2011 from the Fall River in California
Added to Troutnut.com by Entoman on October 21, 2011

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