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Species Page - Dicosmoecus
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scientific name    Dicosmoecus    

common name     Giant Orange Sedge

Small to large pebble-bottomed creeks and lake shores.

Adults fly from late July to early September.

Adults are relatively large. The forewings are black (Schmid, 1998). Eyes are prominent and the ocelli are very large. Vertex and thorax are densely clothed with short macrochaetae. Thoracic pleura is covered with dense and usually wooly orange hairs. Spur formula is 1, 3, 4 (Schmid, 1998).

life history
Larvae tend to pupate in aggregations (Wiggins, 1996).

diet info
Larvae are grazers, feeding on diatoms and fine organic particles on rock surfaces (Wiggins, 1996).

Holarctic genus, confined to the western half of North America, Russia and Japan (Wiggins, 1996).

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