Always Under Construction as new information becomes available! Updated 12 May 2021 :-)
Checklists for North America, Nearctic or the World. Also go to Mayfly Central from the Department of Entomology at Purdue University and the Integrated Taxonomic Information System to check species names.
SourcesAllan,JD 1975 Faunal replacement: altitudinal zonation in an alpine stream. Verhandlungen der Internationale Vereinigung für Theoretische und Angewandte Limnologie 19:1015-1022.
A longitudinal survey of Cement Creek, a tributary of the East River in the early 1970s.
McCafferty,WP; Durfee,RS and Kondratieff,BC 1993 Colorado Mayflies (Ephemeroptera): An annotated inventory. Southwestern Naturalist 38(3):252-274 PDF
NAWQA = USGS National Water Quality Assessment Data Warehouse Data as of 1Sep2005
Peckarsky,BL; Dodson,SI and Conklin,DJ 1985 A key to the aquatic insects of streams in the vicinity of the Rocky Mountain Biological Lab, including chironomid larvae from streams and ponds. Colorado Division of Wildlife, Denver CO. 47 pages.
Brown,WS 2005 Mayflies (Ephemeroptera) of Gunnison County, Colorado, USA
"What sort of insects do you rejoice in, where you come from?" the Gnat inquired.
"I don't rejoice in insects at all," Alice explained "because I'm rather afraid of them--at least the large kinds. But I can tell you the names of some of them."
"Of course they answer to their names?" the Gnat remarked carelessly.
"I never knew them to do it."
"What's the use of them having names," the Gnat said, "if they won't answer to them?"
Alice in Wonderland by Lewis Carroll