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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Mayflies (Ephemeroptera) » Pisciforma » Heptagenioidea » Flatheaded Mayflies (Heptageniidae) » Epeorus
Photo#1333695
mayfly larva - Epeorus
Copyright © 2017 Joyce Gross

mayfly larva - Epeorus
Angelo Coast Range Reserve, Mendocino County, California, USA
June 13, 2016
From the Eel River. Epeorus sp.?
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Contributed by Joyce Gross on 22 January, 2017 - 11:36pm
Last updated 23 January, 2017 - 2:46pm

Moved
Moved from Mayflies.
… Joyce Gross, 23 January, 2017 - 2:46pm login or register to post comments

Epeorus
Yes, it's an Epeorus sp., possibly E. albertae. There are no good keys for western Epeorus although the one by Edmunds and Allen covers a number of western species. It can be found here:

http://www.ephemeroptera-galactica.com/pubs/pub_e/pubedmundsg1964p275.pdf
… Mark Melton, 23 January, 2017 - 1:14pm login or register to post comments

 
thanks Mark
I see now (from the key you link to) that it would have been helpful if I'd gotten a ventral shot to help with the species ID. Next time!
BTW, you can see a larger version of the above image here.
… Joyce Gross, 23 January, 2017 - 2:45pm login or register to post comments

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