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Diptera.info :: Identification queries :: Diptera (adults)
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Rivellia syngenesiae?
Rui Andrade
#1 Print Post
Posted on 31-05-2009 22:04
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Location: Portugal
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Rivellia are very common here, in the North of Portugal. I think this could be R. syngenesiae, but I don't know how R. hispanica looks like. The photos show a specimen feeding on bird droppings.

location: Vila Nova de Gaia, Portugal
date: 31/05/2009

img33.imageshack.us/img33/9423/riv1.jpg

img33.imageshack.us/img33/7294/riv2.jpg

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www.flickr.com/photos/rui_andrade/
Paul Beuk
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Posted on 01-06-2009 08:12
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I don't know R. hispanica either, but the small clear marking in the apical wing spot is rather uncommon in R. syngenesiae. Whether that would be a difference with syngenesiae, I don't know.
Paul

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Andre
#3 Print Post
Posted on 01-06-2009 09:46
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You can send it along with the Syrphidae. I will try to get it to a specialist here if you want.
 
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Rui Andrade
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Posted on 02-06-2009 00:38
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Thank you Paul. I checked other photos from different specimens and this one is the only one with that clear marking on the wing.
Thank you too Andre. Unfortunately I didn't collect this specimen. I'll try to find more with this kind of wing pattern and it would be very nice to have an ID.Smile
 
www.flickr.com/photos/rui_andrade/
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