Mayfly Family Isonychiidae (Slate Drakes)

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Taxonomic Navigation -?-

Kingdom Animalia (Animals)

» Phylum Arthropoda (Arthropods)

» Class Insecta (Insects)

» Order Ephemeroptera (Mayflies)

» Family Isonychiidae (Slate Drakes)

Genus in Isonychiidae
IsonychiaSlate Drakes	20	105

Common Name

Match	Common Name
	Slate Drakes

Pictures Below ↓

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

The behavior and habitat of Isonychiidae.
5 streamside pictures of Isonychiidae.

20 Mayfly Specimens in the Family Isonychiidae:

Specimen Page:1 23

Isonychia bicolor (Mahogany Dun) Mayfly Nymph

View 3 Pictures

Region: Northeast

Collected Mar 13, 2005

Added Apr 5, 2006

Isonychia bicolor (Mahogany Dun) Mayfly Nymph

View 2 Pictures

Region: Catskills

Collected Aug 24, 2004

Added Jan 25, 2006

Isonychia 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.

Region: Upper Midwest

Collected Jan 14, 2004

Added Jan 25, 2006

Isonychia bicolor (Mahogany Dun) Mayfly Nymph

View 2 Pictures

Region: Upper Midwest

Collected Feb 10, 2004

Added Jan 25, 2006

Isonychia bicolor (Mahogany Dun) Mayfly Nymph

View 2 Pictures

Region: Upper Midwest

Collected Jan 14, 2004

Added Jan 25, 2006

Isonychia bicolor (Mahogany Dun) Mayfly Nymph

View 4 Pictures

Region: Upper Midwest

Collected Feb 7, 2004

Added Jan 25, 2006

Isonychia (Slate Drakes) Mayfly Nymph

View 3 PicturesThis smaller Isonychia nymph was caught with a bunch of bicolor specimens, but it does not have the fluffy spine structure at the base of its gills. This might mean it's Isonychia sayi, or it might just be a bicolor nymph too young to have developed those structures.

Region: Upper Midwest

Collected Jan 13, 2004

Added Jan 25, 2006

Specimen Page:1 23