Diptera.info

Posted by Johane on 09-12-2015 23:17

How common is it that Muscidae have a red or orange frons and in which genera/species does it occur?

Posted by Stephane Lebrun on 10-12-2015 06:13

Hi Johan,
the Muscidae with orange frons are extremely rare. It is one of the trick to distinguish them from Anthomyiidae. I think about Coenosia, like C. testacea, which has orange on anterior part of frons, the genus Atherigona, and there are perhaps a few species in Coenosi-a (-ini) that doesn't come to my mind so early in the morning.

Posted by Johane on 10-12-2015 11:02

The reason why I asked is this fly.
http://artportale...age/644932
Is it C. mollicula?

Edited by Paul Beuk on 10-12-2015 11:24

Posted by Paul Beuk on 10-12-2015 11:29

Compare with Mycophaga testacea (Anthomyiidae): http://www.dipter...to_id=6562

Posted by Paul Beuk on 10-12-2015 17:22

I don't know. I know it is not Mycophaga testacea because that has partly reddish scutellum, but I do not know about related species. I cannot for certain say that it is Muscidae, but looking further in the Anthomyiidae gallery there is also this picture of Pegomyia cf. solennis: http://www.dipter...to_id=6786. Oddly enough, the males of that species in the Gallery all have grey fore tibiae, the female's fore tibia is rather orange.
Anyway, I am venturing on thin ice as I know preciously little about Anthomyiidae...

Edited by Paul Beuk on 10-12-2015 17:27