Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
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Upcoming Events

Discussion of 2018 gathering

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington


Genus Caenis

Ephemeroptera: Caenidae: Caenis tardata larva - Caenis tardata Caenidae - Caenis mayfly hiding under stones - Caenis Very small mayfly - Caenis Unknown - Caenis mayfly - Caenis Which Caenis? - Caenis Tiny mayfly - Caenis
Kingdom Animalia (Animals)
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
Explanation of Names
Caenis Stephens 1835
in Greek mythology, Caenis was a young nymph raped by Poseidon and later turned into a man
one of the largest mayfly genera, with 13 spp. in our area and close to 150 total(1)(2)
worldwide, with a third of spp. in tropical Africa and even more in Eurasia; in the New World, ~2/3 are neotropical(2)