In Caddisflies, Gary LaFontaine attributed the famous spring hatch on the Beaverkill (now known as the "Apple Caddis") to this species. After that publication, entomologists described that major hatch as a new species -- Brachycentrus appalachia.
» Species numerosus (Dark Grannom)
Brachycentrus numerosus is probably still important in many locations. Where & WhenRegions: East, Midwest
Time Of Year (?): May
Hatching BehaviorTime Of Day (?): Afternoon
Time Of Day: EveningSpecial 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.
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