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Mayfly male

 
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Wim van Egmond



Joined: 08 Apr 2005
Posts: 440
Location: Rotterdam, the Netherlands

PostPosted: Thu May 18, 2006 5:21 am    Post subject: Mayfly male Reply with quote

For Tom, a mayfly male. They have the strange double eyes. Under the strange upwards directing compound eyes is another pair. the image below is a crop actual pixel size to show the details.

Wim




Last edited by Wim van Egmond on Thu May 18, 2006 6:24 am; edited 1 time in total
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twebster
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Joined: 19 Apr 2004
Posts: 1518
Location: Phoenix "Valley of the Sun", Arizona, USA

PostPosted: Thu May 18, 2006 6:20 am    Post subject: Reply with quote

Hi ya' Wim, Very Happy

Yup, the males of some mayflies have these "goggly" eyes. These eyes occur mostly in mayfly species that inhabit large, open bodies of water. The enlarged eyes allow the male mayflies to detect females silhouetted against a large expanse of open sky. Mayfly species that inhabit restricted, running waters, generally, do not have these enlarged eyes as there is less sky to be seen from a creek or river. Cool, Wim Exclamation Very Happy

Best regards as always, my friend Exclamation Very Happy
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MikeBinOKlahoma



Joined: 20 Nov 2004
Posts: 1491
Location: Umm....Could it be Oklahoma?

PostPosted: Thu May 18, 2006 7:15 pm    Post subject: Reply with quote

And to think that so many of us mammal males hide OUR eyes behind sunglasses when we scan for females! Smile

Good shot of a very alien-looking subject!
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Ken Ramos
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Joined: 04 May 2004
Posts: 4809
Location: Western North Carolina

PostPosted: Fri May 19, 2006 3:14 am    Post subject: Reply with quote

I have seen these large Mayflies around some of the lakes here in North Carolina but never paid them much attention since I am mainly a small stream fly fisherman. An interesting shot Wim. Next time I am bobber fishing at the lake (don't tell anyone I do such things), I will take more notice. Very Happy
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