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For Insects, Spiders & Their Kin
For the United States & Canada
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Genus Isonychia

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Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Ephemeroptera (Mayflies)
Suborder Pisciforma
Superfamily Heptagenioidea
Family Isonychiidae (Brushlegged Mayflies)
Genus Isonychia
Other Common Names
Slate Drakes
Explanation of Names
Isonychia Eaton 1871
16 spp. in our area(1), 34 spp. total(2)
holarctic with some Oriental representation(2)
Internet References