Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

Information about the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

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


Taxonomy
BrowseInfoImagesLinksBooksData

Family Heptageniidae - Flatheaded Mayflies

Phylum Arthropoda - Arthropods
Subphylum Hexapoda - Hexapods
Class Insecta - Insects
Order Ephemeroptera - Mayflies
Suborder Pisciforma
Superfamily Heptagenioidea
Family Heptageniidae - Flatheaded Mayflies

Genus Cinygma
Genus Cinygmula
Genus Ecdyonurus
Genus Epeorus
Genus Heptagenia
Genus Ironodes
Genus Leucrocuta
Genus Maccaffertium
Genus Nixe
Genus Raptoheptagenia
Genus Rhithrogena
Genus Spinadis
Genus Stenacron
Genus Stenonema