Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
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Calendar
BugGuide Gathering
Pack Forest
Washington State
July 10-12, 2009
Details...

Photos from the 2008 gathering in Tennessee
 
Photos from the 2007 gathering in Minnesota

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Family Caenidae - Small Squaregilled Mayflies

tiny Mayfly-like insects - Caenis tiny mayfly? - Caenis Small Mayfly - Caenis Is this a Caenis Mayfly? - Caenis - female Mayfly ?   abdomen at 100X Mayfly larva - Caenis Mayfly larva - Caenis Mayfly larva - Caenis
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Ephemeroptera (Mayflies)
Family Caenidae (Small Squaregilled Mayflies)
Numbers
Nomina Insecta Neartica lists 4 North American genera: Amercaenis, Brachycercus, Caenis and Cercobrachys.
Internet References
USGS Mayflies of the US has distribution maps.