Thread subject: Diptera.info :: [Chloromyia formosa] Stratiomyiidae ID

Posted by Arthropa on 07-08-2004 12:48
#1

Hello,

I have some difficulties with 3 specimens.
(Brittany, France - July 2004)

First one : body length 7 mm approx.
arthropa.free.fr/photos/ATH04-07-15-122.jpg arthropa.free.fr/photos/ATH04-07-15-124.jpg

Second one : body length 7 mm approx. too
arthropa.free.fr/photos/ATH04-05-23-008.jpg

Third and last one, on Hydrangea : body length 9 mm approx.
arthropa.free.fr/photos/ATH04-07-14-018.jpg arthropa.free.fr/photos/ATH04-07-14-021.jpg

I even wonder whether it is not the same species, which could be Chloromyia formosa ?

Thanks to anyone who could help !

Edited by Arthropa on 10-03-2007 00:35

Posted by Gerard Pennards on 08-08-2004 00:25
#2

Hoi Benoit,
Yes, your guess is right, they are all Chloromyia formosa.
This species is usually quite commen in the summer.
Characteristics: no thornes on the scutellum, cell in the middele of the wing with 3 veins coming from it, the fourth is not coming out of this cell but before, eyes hairy.
This means it is a Chloromyia, and it is C. formosa because first tarsal segments of leg 2 and 3 are brownish, wing is light brownish and the hairs around the ocelli from this females are light couloured!

Posted by Paul Beuk on 08-08-2004 16:11
#3

And note that the colour can range from metallic green, to metallic blue and metallic purple on the abdomen. Quite confusing!

Posted by Arthropa on 09-08-2004 14:14
#4

Thanks for your confirmation and all your explanations.
It's so pleasant to understand how's and why's : nice of you to share all that. ;)

Edited by Arthropa on 09-08-2004 14:15