Thread subject: Diptera.info :: Achanthiptera rohrelliformis, Muscidae, Hungary, August 2007

Posted by Xespok on 04-01-2008 23:59
#1

A distinctive species. I hope someone will recognize this one.

Edited by Xespok on 05-01-2008 11:02

Posted by Xespok on 05-01-2008 00:00
#2

Lateral shot.

Posted by Xespok on 05-01-2008 00:01
#3

The head.

Posted by jorgemotalmeida on 05-01-2008 00:17
#4

anthomyiidae? if so, very peculiar one.

Posted by Stephane Lebrun on 05-01-2008 00:21
#5

Achanthiptera rohrelliformis female, if I recognize it !

Posted by Xespok on 05-01-2008 00:23
#6

I thought about that one, but should it have not a different thoracic pattern? Or is it present in just the males? (If A. r. this should be a very good record from Hungary!)

Posted by Stephane Lebrun on 05-01-2008 01:22
#7

This species is said to have a variable black mid stripe on anterior part of thorax, so I assume it can be absent.
I think this species is recognizable by the following characters : entirely reddish-yellow muscid with 2+3 (2) dc, white polinosity on anterior part of scutum (info Kahis).
Also the frons is very characteristic in female with such 3 orbitals :
1 anterior pair of proclinate
1 median pair of divergent (not common !)
1 posterior pair of reclinate
And, of course the main character (which is rarely visible on photograph) identifying the genus is that the R1 vein is setulose on apical third dorsaly, .

A previous thread showing a similar one.

Posted by Xespok on 05-01-2008 11:00
#8

Actually I did some reading. The very few specimens ever found in Hungary are like this. No black stripe and the hind femora and tibia are darker than in specimens found in other parts of Europe. Mihalyi has investigated this issue a little bit. (He liked to describe new calyptrate species from Hungary, many of which were later disregarded for a variety of reasons.) So this must be A. r.

In fact this fly has such a distinct jizz that it should be possible to recognize it right away.