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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Mayflies (Ephemeroptera) » Pisciforma » Heptagenioidea » Flatheaded Mayflies (Heptageniidae)
Photo#1354027
8016528 Mayflies
Copyright © 2017 Rob Curtis

8016528 Mayflies
Kankakee River SP, Illinois, USA
August 14, 2009
Maccaffertium?
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Contributed by Rob Curtis on 7 April, 2017 - 10:46am

2 samples
I am surprised how long this has sat here un-identified. Both samples are Maccaffertium the upper dark one matching the other ones you posted that align with pulchellum. I will take a shot at the light one on the left only because I have reared many that look like that sample being rubromaculatum, which is no currently apart of the species concept for modestum. So the light one is likely M modestum.

Because we have two different samples in one photo this has to only go to genus level.

Mack.
… The Stenonema Rangers of Ontario, 9 April, 2017 - 4:32pm login or register to post comments

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