Thread subject: Diptera.info :: Very small acalyptrate, Hungary, May Anthomyzidae or???
Posted by pwalter on 18-05-2009 14:05
#1
Hi, this ~2 mm fly was sitting on chopped wood in NE Hungary, forest. No idea of the family.
Edited by pwalter on 18-05-2009 18:31
Posted by Paul Beuk on 18-05-2009 14:17
#2
Stenomicra springs to mind...
Posted by pwalter on 18-05-2009 14:20
#3
Would be great to have that genus :D I expected Periscelididae or something alike. here's another phot:
Posted by Paul Beuk on 18-05-2009 14:30
#4
No
Stenomicra, as that has long rays on the arista. Periscelididae should have only one frontal setae, this one seems to have two. Perhaps still Anthomyizidae...
Edited by Paul Beuk on 18-05-2009 14:33
Posted by pwalter on 18-05-2009 18:30
#5
Thanks Paul for Your recent help, maybe someone recognises it.
Posted by Paul Beuk on 18-05-2009 19:06
#6
Can you confirm that the posterior crossvein is actually missing? Or is it very indistinct?
Edited by Paul Beuk on 18-05-2009 19:11
Posted by pwalter on 18-05-2009 19:39
#7
Hi, I made two images of the wing and maybe the reflections make it more clear. I don't see the crossvein.
Posted by Paul Beuk on 19-05-2009 09:09
#8
Jindrich Rohácek wrote:
Dear Paul,
I suppose both photos of this (really Anthomyzid) fly on your web pages are of the same species. It is Stiphrosoma sabulosum (Haliday, 1837), female. Normally, the species lives in tufts of various grasses and the majority of specimens are brachypterous. The (less often occurring) macropterous form is markedly more frequent in female sex and I believe it is due better dispersal of the species (only macropt. f. can be found in Malaise trap or window trap samples).
Very best wishes, yours
Jindrich
Posted by pwalter on 19-05-2009 09:15
#9
Thank You and thanks for Jindrich Rohácek also! I'll submit this to the gallery among with many other recent finds in some time (when I finally finish the work with my photos made in spring and preparate the collected specimens).
Posted by Jan Willem on 19-05-2009 10:41
#10
Nice! I found this species several times in pitfall traps, but only brachypterous specimens.