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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Mayflies (Ephemeroptera) » Pisciforma » Heptagenioidea » Flatheaded Mayflies (Heptageniidae) » Maccaffertium
Photo#1597017
Flatheaded Mayfly - Maccaffertium
Copyright © 2018 David E. Reed

Flatheaded Mayfly - Maccaffertium
Cathance River Nature Preserve, Topsham, Sagadahoc County, Maine, USA
September 27, 2018
Size: 5.7mm
Looks like Maccaffertium sp. Kick Net collection from shallow, fast-moving stream (Cathance River)
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Contributed by David E. Reed on 28 September, 2018 - 5:38pm

Maccaffertium mexicanum intergrum female
it's a pretty good bet this is a Maccaffertium mexicanum intergrum and that species is in you are as per Mayfly Central
… The Stenonema Rangers of Ontario, 1 March, 2020 - 12:09am login or register to post comments

 
Maccaffertium
Thank you.
… David E. Reed, 1 March, 2020 - 10:16am login or register to post comments

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