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

Discussion, insects and people from the 2018 BugGuide 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

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington

TaxonomyBrowse
Info
ImagesLinksBooksData

Species Maccaffertium smithae

Flat-headed Mayfly - Maccaffertium smithae - female Flat-headed Mayfly - Maccaffertium smithae - female Tiny mayfly  - Maccaffertium smithae Maccaffertium sp. - Maccaffertium smithae Maccaffertium smithae - female Flat-headed Mayfly - Maccaffertium smithae - female Maccaffertium? - Maccaffertium smithae Maccaffertium? - Maccaffertium smithae
Classification
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
Species smithae (Maccaffertium smithae)
Synonyms and other taxonomic changes
Maccaffertium smithae (Traver, 1937)
Stenonema smithae Traver, 1937
Identification
"From everything I have read the only possible species that fits this sample is (Maccaffertium smithae) it also has the right geographical range. The fact that the spiracular spots are well above the spirical folds and it has the median tergite longitudinal line point to that species." [Stenonema Rangers of Ontario]