Thread subject: Diptera.info :: Sapromyza sp. ?

Posted by SpinH on 15-06-2007 21:29
#1

Hello!

This is a fly I often meet in the wild grass in my garden.
On the insecte.org forum it has been identifed as Sapromyza sp. but I have been invited to ask Diptera.info for confirmation.

So could someone confirm or help going further?

The fly is about 4 or 5 mm long.
This one has been met on July 27th, 2005 in Puchay (Normandy), France.
I usually see this fly from mid-spring to summer. Not sure it is always the same specie but I see no difference, and always those dots on the abdomen.
It does not fly a lot. It rather walks on the grass going forth and back, when not still.
www.galerie-insecte.org/galerie/image/dos20/temp/186_8624_aux_yeu.jpg
www.galerie-insecte.org/galerie/image/dos10/temp/186_8634_01.jpg


Here are wings, if it helps (same place +/- 10 metres, same day, another specimen).
img231.imageshack.us/img231/732/1868685wingsyu6.jpg


I also met this one, more hairy and I wonder wether it is the same specie/genera?
(same place, may 17th, 2007)
img102.imageshack.us/img102/538/4252532hairyqj3.jpg


I regularly meet other flies without the spots (at least less visible on my photos, but perhaps an angle and/or point of focus cause? or because abdomen is smaller and spots are hidden under other segments?) and with a more narrow abdomen (sharper at the end). Male/female difference?
(same place, june, 23rd, 2006)
img238.imageshack.us/img238/3351/2898936narrowerabdomentx3.jpg

Thank you for your answers!

Edited by SpinH on 15-06-2007 21:33

Posted by Nikita Vikhrev on 15-06-2007 22:15
#2

Sapromyza opaca, I think.

Posted by SpinH on 29-06-2007 12:34
#3

So all are of the same specie. I wondered.
Thanks.