Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Family Heptageniidae - Flatheaded Mayflies


Ephemeroptera Galactica, the ephemeropterists' home page
[cite:1028463]

Kondratieff B.C., ed. (2000-) Mayflies of the United States
[cite:889604]

Distribution maps are extremely helpful, although limited to the conterminous United States

Barber-James H., Sartori M., Gattolliat J-L., Webb J. (2013) World checklist of freshwater Ephemeroptera species
[cite:889266]

freshwater, eh?

Mayfly Central
[cite:373560]
BG's standard ref of Ephemeroptera taxonomy (see Master List of Online Taxonomy References), maintained by Purdue Entomology. Jump to the species list (province/state records, synonyms)

Troutnut.com - Photos and Biology of Aquatic Insects - Mayfly Section
Over 1800 closeup photos of more than 400 mayflies illustrate an encyclopedia of the life history of each species, written as a simple but thorough explanation for the fly angler.

Insects Unlocked
[cite:1638831

We are the Insects Unlocked project at the University of Texas at Austin.

Based in the UT Insect Collection (UTIC) at Brackenridge Field Laboratory (BFL), part of the Department of Integrative Biology, we produce insect imagery for the public domain.

American Insects
Image galleries and some data, covering insects that are found in North, Central, and South American, including the Caribbean.

Tropicos
[cite:1286620 ]

Link

All of the nomenclatural, bibliographic, and specimen data accumulated in Missouri Botanical Garden's (MBG) electronic databases during the past 30 years are publicly available here. This system has nearly 1.3 million scientific names and over 4.4 million specimen records.

Great resource for plant distribution beyond US & Canada.