Thread subject: Diptera.info :: Drosophilidae - Drosophila cf funebris
Posted by hedy2411 on 11-10-2011 20:50
#1
Who knows the name of this small fly...?
Found today in Zeist, Holland
Edited by hedy2411 on 14-10-2011 17:15
Posted by Paul Beuk on 12-10-2011 15:49
#2
Perhaps
Drosophila funebris.
Posted by hedy2411 on 14-10-2011 10:46
#3
Hello Paul,
From internet I see this picture which is almost the same as this fly.
It is said to be Drosophila simulans.
http://www.lucasbrouwers.nl/blog/wp-content/uploads/2010/01/drosophila_rt_9c9_rs.jpg
Is it possible...?
Regards,
Hedy
Posted by Paul Beuk on 14-10-2011 11:25
#4
The picture certainly cannot determine between
D. simulans and
D. melanogaster.
Posted by hedy2411 on 14-10-2011 17:15
#5
Great, then we may stick to Drosophila cf funebris...
It is the first picture on the specieslist, nice.
Thanks for your reaction!!
Regards,
Hedy
Edited by hedy2411 on 14-10-2011 17:20
Posted by djo on 17-10-2011 20:35
#6
I don't think funebris. (not brown enough, black marks on tergites too triangular). But I really don't think Dmel or Dsim either (too 'square', blocky, triangular shading on tergites, and the dorsocentrals are too far back, plus the shaded cross-vein is wrong).
I might guess immigrans (and the clouded cross-veins might support this) but there is not enough shading where the long veins meet the wing tips. Without a key to hand, I might guess D. histrio.
Howver! This website clearly indicates that Paul knows Drosophila
much better than I. Paul, can I ask what leeds you to funebris? and why not dismiss Dsim out of hand?
Thanks
Posted by Paul Beuk on 18-10-2011 16:53
#7
D. funebris was my first thought. My reply about
similans was more a reply in the sense that
melanogaster and
simulans cannot be separated based on the above image, so as an alternative both species are just as plausible. I have been looking at some other images of drosophilids earlier this week and I think your suggestion on
immigrans is not half that bad. Unfortunately, the markings at the tips of the longitudinal veins are not discernable.
Edited by Paul Beuk on 18-10-2011 16:54
Posted by hedy2411 on 18-10-2011 21:07
#8
Paul. can you make clear to me with a sign in the picture or in a drawing what point you are looking for as I have some more pictures.
Regards,
Hedy
Posted by djo on 19-10-2011 16:01
#9
I really think the colour and banding are wrong for D funebris (below)
For D immigrans, the joints between the long wing veins and the costa (near the wing tip) are usually shaded. A good dorsal view with no reflection would show this. Ultimate proof of Dimm would be provided by a closeup view of the ventral surface of the forefemur which should have ~12 short conical 'peg-like' spikes/bristles/projections. The more I look though, the more I think the position of the dorsocentral bristles supports D. immigrans. (D. immigrans, below)
A dorsal view of the abdomen (without the wings in the way) would rule out Dmel or Dsim.