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View Thread :: Identification queries :: Diptera (adults)
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Green Fly for ID, C Spain --> Neomyia cornicina
#1 Print Post
Posted on 14-06-2011 19:28
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Location: Madrid, Spain
Posts: 2431
Joined: 06.11.10

I think this is is Muscidae (perhaps Neomyia?). Confirmation or the correct Genus would be much appreciated. I always get all this Neomyia, Eudasyphora and the Calliphoridae, Chrysomya and Lucilia all mixed upawkwardawkward

Taken in the mountains of Madrid on the 11th June 2011.
Piluca_Alvarez attached the following image:

Edited by Piluca_Alvarez on 15-06-2011 22:27
#2 Print Post
Posted on 14-06-2011 19:29
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Location: Madrid, Spain
Posts: 2431
Joined: 06.11.10

A lateral view.
Piluca_Alvarez attached the following image:

Stephane Lebrun
#3 Print Post
Posted on 15-06-2011 18:28
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Location: Le Havre, France
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Joined: 03.03.07

Neomyia cornicina. Wink
Some quick tips : Lucilia : more than one postsutural acrostichal, mid tibia with at least one strong ad, genae not metallic green.
Chrysomya : stout flies with poorly developped setae on thorax and abdomen, and (european species, with a dark stripe on hind margin of tergites).
Other metallic green muscid : bent of vein M is smoother (not angular), and can have hairy eyes (never in Neomyia or Calliphoridae).
Edited by Stephane Lebrun on 15-06-2011 18:30
#4 Print Post
Posted on 15-06-2011 22:26
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Location: Madrid, Spain
Posts: 2431
Joined: 06.11.10

THANKS A LOOOOOOOT, Stephane!!!!!!!!!

I am happy lady now GrinGrinGrin Honestly, those are great ID tips. I know now what I have to photograph. And if I manage good quality I know I can get the genus.

Cannot thank you enough for this, Stephane. This has had me puzzled for months now. I should have asked long ago. Better late than never!

All the best

Stephane Lebrun
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Posted on 15-06-2011 22:39
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Location: Le Havre, France
Posts: 8248
Joined: 03.03.07

I have been in the same position as you a few years ago, mixing up all these similar greenbottles and without any clue to recognize them on the field. The characters given in the keys are often not visible on the pictures (e.g. row of strong hypopleural bristles for Calliphoridae, stem vein setulose for Chrysomya etc.).
John Carr
#6 Print Post
Posted on 16-06-2011 15:22
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Location: Massachusetts, USA
Posts: 9782
Joined: 22.10.10

Thanks, Stephane, for the ID guide. I can add habitat as a useful clue. I read that Neomyia cornicina larvae live exclusively in bovine dung (= US "cow pies"), so you can rule it out of there are no cows nearby.
Edited by John Carr on 16-06-2011 15:23
#7 Print Post
Posted on 16-06-2011 17:37
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Location: Madrid, Spain
Posts: 2431
Joined: 06.11.10

Well John, I must add that the fly in my picture, although sitting on a leaf, was near loads of caw dung!!

Thanks for your input too!!
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