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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Mayflies (Ephemeroptera) » Furcatergalia » Pannota » Ephemerelloidea » Spiny Crawler Mayflies (Ephemerellidae)
Photo#1236395
Ephemerella - female
Copyright © 2016 Colin (Sandy) Pittendrigh

Ephemerella - Female
Three Forks, Madison County, Montana, USA
June 9, 2016
Size: 1/4" or 6.35mm
The duns or sub-imagoes were hatching at 11:30 this morning on Montana's Madison River, perhaps ten miles upstream from Three Forks Montana. A few fish were slurping the drifting flies.
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Contributed by Colin (Sandy) Pittendrigh on 9 June, 2016 - 7:39pm
Last updated 10 June, 2016 - 1:12am

Moved
Moved from Mayflies.
… Roger Rohrbeck, 10 June, 2016 - 1:12am login or register to post comments

Ephemerellidae
Hi Sandy-

I suspect this female to be Attenella margarita, but can't really be certain, so am placing it in the guide at family level.
… Roger Rohrbeck, 10 June, 2016 - 1:03am login or register to post comments

Moved
Moved from ID Request.
… metrioptera, 9 June, 2016 - 8:30pm login or register to post comments

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