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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Mayflies (Ephemeroptera) » Furcatergalia » Pannota » Ephemerelloidea » Spiny Crawler Mayflies (Ephemerellidae) » Ephemerella » Ephemerella invaria
Photo#56353
Small Mayfly - Ephemerella invaria
Copyright © 2006 Nolie Schneider

Small Mayfly - Ephemerella invaria
Ottawa, Ontario, Canada
June 6, 2006
Size: 8 mm body
Ball of orange material extruded from the abdomen of the mayfly.

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Small Mayfly - Ephemerella invaria - female Small Mayfly - Ephemerella invaria
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Contributed by Nolie Schneider on 7 June, 2006 - 6:56pm
Last updated 10 October, 2008 - 11:31am

Moved
Moved from Stream Mayflies.
… John R. Maxwell, 10 October, 2008 - 11:31am login or register to post comments

Moved
Moved from Mayflies.
… John R. Maxwell, 24 July, 2008 - 11:14pm login or register to post comments

I don't know mayflies
But I would suspect these are eggs to be deposited on the surface of the water. Some dragonflies do this too, where the eggs collect in a little ball and then the insect taps its abdomen on the water surface, releasing the eggs.
… Cliff Bernzweig, 8 June, 2006 - 9:55am login or register to post comments

 
Mayflies
Thank you, Cliff. I thought that was the most likely explanation.

Nolie
… Nolie Schneider, 8 June, 2006 - 1:39pm login or register to post comments

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