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Mayfly Species Siphlonurus rapidus (Gray Drake)

Taxonomic Navigation -?-
Kingdom Animalia (Animals)
» Phylum Arthropoda (Arthropods)
» Class Insecta (Insects)
» Order Ephemeroptera (Mayflies)
» Family Siphlonuridae (Gray Drakes)
» Genus Siphlonurus (Gray Drakes)
» Species rapidus (Gray Drake)
Common Names
This species may reinforce spinner flights of Siphlonurus quebecensis and Siphlonurus alternatus.  

Where & When

Regions: East, Midwest
Time Of Year (?): May through June
Most accounts say this species hatches through June, but Knopp and Cormier in Mayflies: An Angler's Study of Trout Water Ephemeroptera say it may last through the end of September.

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Last update July 19th, 2007.
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