Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
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Genus Acerpenna

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Ephemeroptera Galactica, the ephemeropterists' home page

Kondratieff B.C., ed. (2000-) Mayflies of the United States

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

freshwater, eh?

Mayfly Central
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) - 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.

[cite:1286620 ]

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.

C.A. Triplehorn Insect Collection (OSUC)

The collection holds more than 3.5 million insect specimens and is one of the largest university insect collections in the world. All groups of insects are represented in the collection, and we are recognized for our holdings of leafhoppers (Cicadellidae), beetles (Coleoptera), and true flies (Diptera).

The Triplehorn Insect Collection is housed within the Museum of Biological Diversity, located on the West Campus of the Ohio State University in Columbus, Ohio.

On 29 April, 2005, the Ohio State Insect Collection was renamed in honor of Dr. Charles A. Triplehorn, Professor of Entomology and Curator at OSU between 1962 and 1992.

Factsheets on agriculturally important insects

India, National Bureau of Agricultural Insect Resources

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