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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Mayflies (Ephemeroptera) » Pisciforma » Heptagenioidea » Flatheaded Mayflies (Heptageniidae) » Stenacron
Photo#832601
Which Mayfly? - Stenacron - male
Copyright © 2013 Bob Cammarata

Which Mayfly? - Stenacron - Male
Susquehanna River, Harford County, Maryland, USA
August 28, 2013
Size: around 3/8"
Very delicate and cooperative little fly.
Posed for a few intimate portraits before laboring into flight.
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Contributed by Bob Cammarata on 29 August, 2013 - 4:34pm
Last updated 29 August, 2013 - 6:36pm

Looks like a perfect
Looks like a perfect, Stenacron interpunctatum ("Says") to the original form.
… The Stenonema Rangers of Ontario, 26 January, 2014 - 3:31am login or register to post comments

Moved
Moved from Mayflies.
… Roger Rohrbeck, 29 August, 2013 - 6:36pm login or register to post comments

Stenacron
Hi Bob,

As was thought (and articulated) Vassily Belov, I also believe this male imago to be of genus Stenacron.

Although I am not aware of any Stenacron species having been previously recorded for Maryland, it is not particularly surprising, as (6) Stenacron species have been recorded for neighboring Pennsylvania.
… Roger Rohrbeck, 29 August, 2013 - 6:35pm login or register to post comments

thinking, Stenacron [male imago]; nice shot!
Moved from ID Request.
… v belov, 29 August, 2013 - 4:43pm login or register to post comments

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