Thread subject: Diptera.info :: Tabanus, Hungary
Posted by piros on 30-01-2013 20:56
#1
Found in Szeged, S. Hungary, on 09.05.2011. At first I thought it was T. autumnalis, but this was certainly not more than 11-12 mm long, and also both median and lower callus look somwhat different to me, so I think now that it is
Tabanus regularis. Can someone confirm or correct this ID?
Thanks fo any help in advance!
Henrik
Edited by piros on 30-01-2013 20:58
Posted by piros on 30-01-2013 20:57
#2
2.
Posted by piros on 30-01-2013 20:57
#3
3.
Posted by libor on 30-01-2013 22:01
#4
No, no, Henrik. You can see one eyeband on pic 1. So, impossible to go to regularis. I would say atypically colored T. bromius. Do you agree, Sergyi?
Libor
Posted by piros on 30-01-2013 22:41
#5
Thank you, Libor, for your answer! There may be a stripe in the eyes, but the funny thing is I can't see it - otherwise I wouldn't have proposed T. regularis. I attach a somewhat modified close-up of the eye from an other, virtually identical photo I have. All what I can see is different colors reflected by the ommatidia seen from different angles. But it is possible that I do not have enough experience to see subtle patterns in the eyes of Tabanus!
Edited by piros on 30-01-2013 22:44
Posted by Sergiy Filatov on 31-01-2013 00:14
#6
Henrik, are you sure about the size? I think the eyes are without any bands, so this may be undersized T. autumnalis, which could be considerably smaller (although no lessr than 14 mm) than conventional 20-22mm. Also the shape of the lower callus and somewhat narrowed 1st posterior cell (if I see it correct) may indicate autumnalis. But for definite answer, as always, we have to wait for Theo.
Edited by Sergiy Filatov on 31-01-2013 00:16
Posted by piros on 31-01-2013 00:36
#7
Thanks again for your input! I am fairly sure about the size, but, of course, I may be wrong by one or two mm, but not more! In fact I think it was not even 12 mm. Still, I know it is not a specimen, just some photos, so ... ID could be up in the air:) However, I saw a few more Tabanus of this size and appearance in the same region over the years. As you said, it may be a minor variant of T. autumnalis. Anyway, I don’t want to push this case very far, so I am quite willing to accept Tabanus "nescio":D.
Edited by piros on 31-01-2013 00:37
Posted by piros on 31-01-2013 00:47
#8
And indeed, the lower callus looks like in the case of T. autumnalis!
Posted by Sergiy Filatov on 31-01-2013 09:59
#9
So I think "nescio" is the best choice in our case.|t
Posted by piros on 31-01-2013 16:16
#10
Great, after some hard work we finally reached a consensus:)
Posted by piros on 31-01-2013 16:19
#11
Anyway, next time I'll try to capture it.
Posted by libor on 31-01-2013 20:21
#12
Hmmm, really, flashdance on eye misleaded me. Sorry, Henrik, I was not right...