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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Mayflies (Ephemeroptera) » Pisciforma » Heptagenioidea » Flatheaded Mayflies (Heptageniidae) » Maccaffertium
Photo#451094
Mayfly with Transparent Abdomen - Maccaffertium
Copyright © 2010 Erick Adams

Mayfly with Transparent Abdomen - Maccaffertium
East Greenwich, Kent County, Rhode Island, USA
August 31, 2010
Size: 9.5 to10mm
Drawn by flourescent light.

Images of this individual: tag all
Mayfly with Transparent Abdomen - Maccaffertium Mayfly with Transparent Abdomen - Maccaffertium Mayfly with Transparent Abdomen - Maccaffertium Mayfly with Transparent Abdomen - Maccaffertium Mayfly with Transparent Abdomen - Maccaffertium Mayfly with Transparent Abdomen - Maccaffertium Mayfly with Transparent Abdomen - Maccaffertium Mayfly with Transparent Abdomen - Maccaffertium Mayfly with Transparent Abdomen - Maccaffertium Mayfly with Transparent Abdomen - Maccaffertium
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Contributed by Erick Adams on 4 September, 2010 - 12:08pm
Last updated 5 September, 2010 - 3:13pm

Moved
Moved from Mayflies.
… Roger Rohrbeck, 5 September, 2010 - 3:13pm login or register to post comments

Lloyd Gonzales comment:
Great photos, Erick. This is a male Maccaffertium imago, but I can’t decide whether it looks more like M. modestum or M. mediopunctatum. Both are highly variable in appearance and the current concept of each species includes a number of synonyms. It’s great to be able to see the male terminalia so clearly, but I still can’t find anything that would seem conclusive in suggesting one over the other.
… Roger Rohrbeck, 5 September, 2010 - 3:11pm login or register to post comments

 
Thank you both.
I appreciate the explanation of the dilemma. This was a new one for me, and surprisingly cooperative, so I'm quite happy with a genus.
… Erick Adams, 5 September, 2010 - 3:26pm login or register to post comments

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