Diptera.info :: Identification queries :: Diptera (adults)
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 fly from Central Poland
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| cortinarius |
Posted on 14-06-2005 19:23
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Member Location: Lodz, Poland Posts: 13 Joined: 14.06.05 |
I'm amateur in insects. Please help me to know what is it. I have an idea. Is it Thereva nobilitata. 
Edited by cortinarius on 14-06-2005 21:28 |
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| Kahis |
Posted on 15-06-2005 17:41
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 Member Location: Helsinki, Finland Posts: 1999 Joined: 02.09.04 |
While we are waiting for the Therevid professionals to drop by, I'd hazard a guess. It could well be Thereva fulva. Thereva nobilitata is usually darker and has slightly infuscated wings. Both species have pale halteres (an unusual character in Thereva). The habitat may also help: fulva strongly prefers sandy habitats, nobilitata accept many other open habitats. |
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| cortinarius |
Posted on 15-06-2005 20:46
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Member Location: Lodz, Poland Posts: 13 Joined: 14.06.05 |
Thanks, It could be T. fulva. I came across it in the garden not far from (0,5 km) a sandy bank of the river. |
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| Zeegers |
Posted on 18-06-2005 20:57
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Administrator Location: Soest, NL Posts: 18888 Joined: 21.07.04 |
Dzien dobry, Cortinarius But then again, it might be Thereva handlirschi. Consult the keys and look for: Number of dorsocentral bristles on thorax (either 1 or 2) presence or absence of dark margins on the tergites. If they are absent, it must be fulva. Handlirschi, on the other hand, is a forest species, also found in parks. It is a late species: end July - September. So if the picture is recent, you can forget about all this. You might consult Trojan's key in Fauna Polski Ladna fotografia ! Theo Zeegers |
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| cortinarius |
Posted on 19-06-2005 20:35
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Member Location: Lodz, Poland Posts: 13 Joined: 14.06.05 |
Goedemiddag, Theo So, that is decisively T. fulva. The forest is quite far from a place, where I took the picture. I found that species 12 June. Thank you! |
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