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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Mayflies (Ephemeroptera) » Furcatergalia » Scapphodonta » Ephemeroidea » Common Burrower Mayflies (Ephemeridae) » Hexagenia
Photo#656489
Mayfly ZH3Z2562 - Hexagenia
Copyright © 2012 Steve Nanz

Mayfly ZH3Z2562 - Hexagenia
Pawcatuck River, Carolina, Washington County, Rhode Island, USA
August 2, 2008
Hexagenia sp.?

Images of this individual: tag all
Mayfly ZH3Z2562 - Hexagenia Mayfly ZH3Z2562 - Hexagenia
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Contributed by Steve Nanz on 13 June, 2012 - 3:35am
Last updated 17 July, 2012 - 4:10pm

Mayfly
Hexagenia have 3 tails. This has 2. Looks like a Anthopotamus, or also known as Potomanthus...Golden Drake.
… Jay M Sheppard, 17 July, 2012 - 10:17am login or register to post comments

 
# Of Tails
Hi Jay-

Sorry I didn't notice your comment when you made it over ten years ago; hope it's not too late now.

However, in their winged lifestages, Hexagenia species have only 2 tails, unlike Ephemera species.
… Roger Rohrbeck, 16 July, 2022 - 8:13pm login or register to post comments

 
Image Added
There is a third tail but it is very small. Should I still move it to Potomanthus?
… Steve Nanz, 17 July, 2012 - 4:22pm login or register to post comments

 
No, don't move it.
Hi Steve,

What you are seeing in the added photo is called a vestigial tail, which is a so abbreviated that it can not normally even be seen by the human eye unless aided by magnification. In any regard, this is a female imago of genus Hexagenia, and it is already properly placed in the guide.
… Roger Rohrbeck, 24 July, 2012 - 1:56pm login or register to post comments

Moved
Moved from Mayflies.
… Roger Rohrbeck, 14 June, 2012 - 1:08am login or register to post comments

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