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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Mayflies (Ephemeroptera) » Furcatergalia » Pannota » Ephemerelloidea » Spiny Crawler Mayflies (Ephemerellidae) » Ephemerella » Ephemerella dorothea » Ephemerella dorothea infrequens
Photo#304490
Spiny Crawler Mayfly - Ephemerella dorothea - male
Copyright © 2009 Kevin Hall

Spiny Crawler Mayfly - Ephemerella dorothea - Male
Pack Forest (near Eatonville), Pierce County, Washington, USA
July 10, 2009
See other images from the 2009 BugGuide Gathering here: gathering_2009
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Contributed by Kevin Hall on 15 July, 2009 - 12:49pm
Last updated 26 August, 2010 - 2:31am

Moved
Moved from Mayflies.
… Roger Rohrbeck, 19 August, 2010 - 3:36pm login or register to post comments

Ephemerella
Kevin,

Thanks for the background cloth weave comparison and additional specimen photos. Based on the weave, I was able to very roughly estimate the body length at ~8 mm. Based on the high resolution photos, which allowed much better examination of the wing venation and the genitalia, I believe this male imago to be Ephemerella, probably E. dorothea infrequens.
… Roger Rohrbeck, 19 August, 2010 - 3:31pm login or register to post comments

Other photos? Body length?
Hmm. Well, it's definitely a male imago. Do you have any other (or higher resolution) photos of it? Would also help to have an estimate of body length based on the weave dimensions of your background cloth plus a bit of geometry.
… Roger Rohrbeck, 16 July, 2009 - 1:56am login or register to post comments

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