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Mayfly Genus Isonychia (Slate Drakes)

Taxonomic Navigation -?-
Species in IsonychiaNumber of SpecimensNumber of Pictures
Isonychia bicolorMahogany Dun00
Isonychia campestrisSlate Drake00
Isonychia siccaSlate Drake00
Isonychia velmaSlate Drake00

12 species aren't included.
Common Names

Pictures Below

This is page 3 of specimens of Isonychia. Visit the main Isonychia page for:

  • The behavior and habitat of Isonychia.

Pictures of 20 Mayfly Specimens in the Genus Isonychia:

Specimen Page:123
Isonychia bicolor (Mahogany Dun) Mayfly NymphIsonychia bicolor (Mahogany Dun) Mayfly Nymph View 2 PicturesThese three Isonychia nymphs show the variety within the species from a single day at a single collection site.
Collected January 14, 2004 from the Namekagon River in Wisconsin
Added to by Troutnut on January 25, 2006
Female Isonychia bicolor (Mahogany Dun) Mayfly DunFemale Isonychia bicolor (Mahogany Dun) Mayfly Dun View 6 PicturesThis is a naturally crippled female Isonychia bicolor dun. One of her main wings came out as a deformed, crumpled yellow object. I found her flopped over on her side struggling on the surface of a small stream.
Collected August 22, 2006 from the West Branch of Owego Creek in New York
Added to by Troutnut on August 23, 2006
Specimen Page:123
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