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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Mayflies (Ephemeroptera) » Pisciforma » Heptagenioidea » Flatheaded Mayflies (Heptageniidae) » Maccaffertium
Photo#644488
Mayfly - Maccaffertium
Copyright © 2012 Callen Harty

Mayfly - Maccaffertium
Picnic Point, Madison, Dane County, Wisconsin, USA
May 20, 2012
This landed on my hand long enough for me to get a few pictures. It appears to be a mayfly, Stenonema femoratumon, and I'm looking for someone who knows mayflies better to verify that. It was at Picnic Point, which is a piece of land that juts out into Lake Mendota.
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Contributed by Callen Harty on 20 May, 2012 - 5:25pm
Last updated 25 August, 2013 - 1:11am

Moved
Moved from Mayflies.
… Roger Rohrbeck, 21 May, 2012 - 1:02am login or register to post comments

Maccaffertium
Hi Callen,

The forewings of Stenonema femoratum have crowded cross veins at its bulla. I believe this mayfly male imago to be of genus Maccaffertium.
… Roger Rohrbeck, 21 May, 2012 - 12:57am login or register to post comments

Moved
Moved from ID Request.
… v belov, 20 May, 2012 - 5:46pm login or register to post comments

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