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

Upcoming Events

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 Maccaffertium

Mayfly - Maccaffertium vicarium Mayfly with Transparent Abdomen  - Maccaffertium White Mayfly - Maccaffertium Flat-headed Mayfly - Maccaffertium Ephemeropteran? - Maccaffertium What Is This? - Maccaffertium   - Maccaffertium Mayfly - Maccaffertium - male
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Ephemeroptera (Mayflies)
Suborder Pisciforma
Superfamily Heptagenioidea
Family Heptageniidae (Flatheaded Mayflies)
Genus Maccaffertium
Synonyms and other taxonomic changes
Stenonema Traver 1933 --all our spp. are treated in that genus in(1)(2)
Explanation of Names
Maccaffertium Bednarik 1979
ca. 20 spp., all in our area(3)(4)
mostly e. NA, esp. diverse in se. US(3)