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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Mayflies (Ephemeroptera) » Furcatergalia » Pannota » Ephemerelloidea » Spiny Crawler Mayflies (Ephemerellidae) » Eurylophella » Eurylophella prudentalis
Photo#241195
Mayfly - Eurylophella prudentalis - male
Copyright © 2008 tom murray

Mayfly - Eurylophella prudentalis - Male
Groton, Middlesex County, Massachusetts, USA
June 8, 2008
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Contributed by tom murray on 21 November, 2008 - 9:15pm
Last updated 22 November, 2008 - 11:17pm

Moved
Moved from Eurylophella.
… tom murray, 22 November, 2008 - 11:17pm login or register to post comments

Thanks Lloyd
I wonder if this is an E. prudentalis.
… tom murray, 22 November, 2008 - 11:45am login or register to post comments

 
Could be...
I can't see anything that would rule out prudentalis, but a close examination of the genitalia of a male imago would be conclusive. This seems like a good match for your female subimago placed in that species. We had previously guessed that these might be making their way to your house from the Nashua. All of the Eurylophella nymphs that you collected from there were identified by DSC as prudentalis. Some guesswork, to be sure, but it seems reasonable to me.
… Lloyd Gonzales, 22 November, 2008 - 3:56pm login or register to post comments

Missing a "tail"
Looks like a male Eurylophella subimago. Orange eyes, brown body, yellowish legs, dark wings, and banded tails are pretty typical of most Eurylophella "duns," but the long 9th abdominal segment is probably the easiest way to separate these from other Ephemerellidae.
… Lloyd Gonzales, 22 November, 2008 - 7:55am login or register to post comments

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