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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Mayflies (Ephemeroptera) » Pisciforma » Small Minnow Mayflies (Baetidae) » Callibaetis
Photo#1213912
Mayfly - Callibaetis
Copyright © 2016 Martha O'Kennon

Mayfly - Callibaetis
Albion, Calhoun County, Michigan, USA
April 20, 2016
This pretty mayfly was on my shop siding. I've never seen one of these before, though I did see empty nymphal skins last year. Can you help me ID it? Oh- is there a way to sex it and say whether it is imago or sub-imago?

Thanks very much in advance! Martha
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Contributed by Martha O'Kennon on 22 April, 2016 - 12:37pm
Last updated 23 April, 2016 - 12:27am

Moved
Moved from Mayflies.
… Roger Rohrbeck, 23 April, 2016 - 12:27am login or register to post comments

Moved
Moved from ID Request.
… metrioptera, 22 April, 2016 - 2:43pm login or register to post comments

Callibaetis?
If this is a Callibaetis, which I suspect from the two tails, marked wing, and small to absent hind wing, you can sex it by the eyes. Males have large eyes, females small. This does not work in other families, or at least not as obviously.
… John F. Carr, 22 April, 2016 - 1:56pm login or register to post comments

 
Thanks John
Let me go sleuth out Callibaetis. Thanks for the clues!
… Martha O'Kennon, 22 April, 2016 - 1:59pm login or register to post comments

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