Diptera.info :: Identification queries :: Diptera (adults)
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 Tabanidae
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| TiCor |
Posted on 29-07-2007 19:07
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 Member Location: Lochristi, Belgium Posts: 71 Joined: 28.07.07 |
I have photographed some Haematopota species. They were all found in Belgium. One of these (see first picture) was Identified as H. subcylindrica.  The one I photgraphed today seems to be a H. crassicornis. Could someone please verify that?     |
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| Zeegers |
Posted on 29-07-2007 20:52
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Member Location: Soest, NL Posts: 18948 Joined: 21.07.04 |
Haematopota males are very difficult to ID and many mistakes have been made. I have tried to incorporate and circumvent these mistakes in my key for the Benelux (Zeegers & van Haaren). The first one is, in my mind, most likely H. italica, indeed often recorded as subcylindrica. I cannot see enough to be really sure. The H. crassicornis seems OK (easiest species, but still beware !) Theo Zeegers |
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| TiCor |
Posted on 29-07-2007 21:02
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Member Location: Lochristi, Belgium Posts: 71 Joined: 28.07.07 |
Thank you for helping me out Theo! Just one question. The Haematopota on the pic below was identified as H. italica. It seems to be a whole different specie as the one I posted in the first pic above.  This is a detail of thje antenna of the one which I thought it would be H. subcylindrica 
Edited by TiCor on 29-07-2007 21:04 Regards, Tim www.ticor.be |
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| TiCor |
Posted on 29-07-2007 23:35
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Member Location: Lochristi, Belgium Posts: 71 Joined: 28.07.07 |
I'm sorry, but I have another question. The H. crassicornis I posted is a male and the other two female. Is this correct? Regards, Tim www.ticor.be |
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| Zeegers |
Posted on 30-07-2007 07:48
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Member Location: Soest, NL Posts: 18948 Joined: 21.07.04 |
The last italica is correct. It's a female. As in Syrphidae: eyes touching -> males, broadly separated -> females. So all crassicornis are male. As you noted correctly, sexual dimorphism can be quite strong in Tabanidae. Theo |
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