Thread subject: Diptera.info :: [Gasterophilus sp] Unknown larva

Posted by Arthropa on 18-03-2007 19:25
#1
Hi,

I'd like your opinion with this larva, found in some ruminant droppings on a way in the forest :
arthropa.free.fr/photos/ATH05-06-12-059.jpg
(Bullion, near Paris (France) - 12th June 2005 - Length was 23 mm)

What do you think about it : could it be some diptera larva, or not ?
Edited by Arthropa on 21-04-2007 22:44

Posted by Paul Beuk on 18-03-2007 19:35
#2
From what I can see there appear to be the larval mouth hooks of the calyptrate and acalyptrate flies. Considering the size I would say some kind of calyptrate fly. Maybe my books will yield somethingmore specific.

Posted by Arthropa on 18-03-2007 19:49
#3
Thanks Paul !

You can click here for a bigger view, whenever it may help ! Wink

Maybe some parasitic one ?
Edited by Arthropa on 18-03-2007 19:52

Posted by Paul Beuk on 18-03-2007 20:09
#4
It seems to be ready to pupate. That made me think, as it was found in the forest, too, that it might be a bot fly. The picture very much resembled that of an oestrid in the Manual of Mearctic Diptera. Maybe Theo can tell a little more about it.

Posted by Tony Irwin on 18-03-2007 22:04
#5
This is a Gasterophilus larva (Gasterophilidae) - an internal parasite of horses. (One for the gallery, please?)

Posted by Arthropa on 18-03-2007 22:48
#6
Thanks Tony !

And one more picture into the gallery ! Wink