Diptera.info :: Identification queries :: Diptera (adults)
 Tabanus sp. please
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| SteveNic |
Posted on 14-07-2009 22:21
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Member Location: Posts: 15 Joined: 22.08.08 |
Hi Male Tabanus from hills in mid-Wales. Length 18mm. Undecided between T. autumnalis and T. sudeticus. SteveNic attached the following image:  [104.81Kb] |
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| tim worfolk |
Posted on 15-07-2009 07:24
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 Member Location: Devon, England Posts: 737 Joined: 05.05.09 |
Surely sudeticus. Tim |
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| SteveNic |
Posted on 15-07-2009 10:53
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Member Location: Posts: 15 Joined: 22.08.08 |
Thanks Tim, I was put off T. sudeticus by the size, descriptions I've seen give a length of 25mm plus, so this seemed a bit small. This is the first Tabanus I've seen here, of the horse flies we usually only see H. pluvialis (and more than enough of them too). I've been reading around on them since posting, am I right in thinking that an obvious difference is that autumnalis should have three rows of light grey abdominal markings and would not have the reddish colouration to the sides ot the abdomen? Another angle, SteveNic attached the following image:  [65.23Kb] |
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| SteveNic |
Posted on 15-07-2009 10:54
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Member Location: Posts: 15 Joined: 22.08.08 |
And a front on view.
SteveNic attached the following image:  [98.04Kb] |
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| Zeegers |
Posted on 15-07-2009 18:35
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Member Location: Soest, NL Posts: 19009 Joined: 21.07.04 |
I agree with Tim It is a male, and males of these large species are distinctly smaller than females. Moreover, sudeticus females range from 22 - 25 mm (dried), so there is no problem at all. Theo |
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| SteveNic |
Posted on 15-07-2009 19:03
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Member Location: Posts: 15 Joined: 22.08.08 |
Thanks both of you, Steve |
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