Diptera.info :: Identification queries :: Diptera (adults)
 Tabanus, Hungary
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| piros |
Posted on 30-01-2013 20:56
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Member Location: Szeged, Hungary Posts: 1844 Joined: 04.01.12 |
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 piros attached the following image:  [195.1Kb] Edited by piros on 30-01-2013 20:58 |
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| piros |
Posted on 30-01-2013 20:57
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Member Location: Szeged, Hungary Posts: 1844 Joined: 04.01.12 |
2.
piros attached the following image:  [197.66Kb] |
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| piros |
Posted on 30-01-2013 20:57
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Member Location: Szeged, Hungary Posts: 1844 Joined: 04.01.12 |
3.
piros attached the following image:  [194.88Kb] |
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| libor |
Posted on 30-01-2013 22:01
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Member Location: western Bohemia Posts: 1302 Joined: 30.05.09 |
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 |
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| piros |
Posted on 30-01-2013 22:41
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Member Location: Szeged, Hungary Posts: 1844 Joined: 04.01.12 |
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!
piros attached the following image:  [198.94Kb] Edited by piros on 30-01-2013 22:44 |
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| Sergiy Filatov |
Posted on 31-01-2013 00:14
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Member Location: Kharkiv, Ukraine Posts: 259 Joined: 22.10.10 |
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 |
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| piros |
Posted on 31-01-2013 00:36
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Member Location: Szeged, Hungary Posts: 1844 Joined: 04.01.12 |
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" .
Edited by piros on 31-01-2013 00:37 |
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| piros |
Posted on 31-01-2013 00:47
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Member Location: Szeged, Hungary Posts: 1844 Joined: 04.01.12 |
And indeed, the lower callus looks like in the case of T. autumnalis! |
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| Sergiy Filatov |
Posted on 31-01-2013 09:59
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Member Location: Kharkiv, Ukraine Posts: 259 Joined: 22.10.10 |
So I think "nescio" is the best choice in our case. |
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| piros |
Posted on 31-01-2013 16:16
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Member Location: Szeged, Hungary Posts: 1844 Joined: 04.01.12 |
Great, after some hard work we finally reached a consensus |
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| piros |
Posted on 31-01-2013 16:19
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Member Location: Szeged, Hungary Posts: 1844 Joined: 04.01.12 |
Anyway, next time I'll try to capture it. |
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| libor |
Posted on 31-01-2013 20:21
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Member Location: western Bohemia Posts: 1302 Joined: 30.05.09 |
Hmmm, really, flashdance on eye misleaded me. Sorry, Henrik, I was not right... |
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