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

Phylum Arthropoda - Arthropods
Subphylum Hexapoda - Hexapods
Class Insecta - Insects
Order Ephemeroptera - Mayflies
Suborder Furcatergalia
Infraorder Pannota
Superfamily Caenoidea
Family Caenidae - Small Squaregilled Mayflies
Genus Caenis

Species hilaris - Caenis hilaris
Species latipennis - Caenis latipennis
Species tardata - Caenis tardata