Diptera.info :: Identification queries :: Diptera (adults)
 anthomyiidae>> hydrophoria lancifer
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| philporter |
Posted on 17-11-2011 11:37
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Member Location: Lincoln UK Posts: 554 Joined: 07.02.07 |
Can anyone give me genus or better please?
philporter attached the following image:  [78.02Kb] Edited by philporter on 21-11-2011 10:00 |
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| philporter |
Posted on 17-11-2011 11:38
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Member Location: Lincoln UK Posts: 554 Joined: 07.02.07 |
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| philporter |
Posted on 17-11-2011 11:38
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Member Location: Lincoln UK Posts: 554 Joined: 07.02.07 |
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| philporter |
Posted on 17-11-2011 11:39
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Member Location: Lincoln UK Posts: 554 Joined: 07.02.07 |
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| philporter |
Posted on 17-11-2011 11:39
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Member Location: Lincoln UK Posts: 554 Joined: 07.02.07 |
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| Nikita Vikhrev |
Posted on 17-11-2011 13:11
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 Member Location: Moscow, Russia Posts: 9561 Joined: 24.05.05 |
GB? Large, about 8mm? Try to check Eutrichota praepotens Nikita Vikhrev - Zool Museum of Moscow University |
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| philporter |
Posted on 17-11-2011 19:56
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Member Location: Lincoln UK Posts: 554 Joined: 07.02.07 |
Nikita, many thanks but there is some confusion because all but one of the Forum references for Eutrichota praepotens show the femora yellow for this species, which is also implied in Michael Ackland's key. The visible genitalia are black and I think they should be orange? The specimen keys pretty well, I think, to the genus, although I am confused by the visibility or not of the sixth tergite, but beyond that I don't know. Is there variability? Regards Phil Porter |
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| javanerkelens |
Posted on 17-11-2011 23:27
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 Member Location: Netherlands Posts: 2962 Joined: 18.10.07 |
We can't see if mentum of proboscis is black shining or grey dusted (grey dusted in E. praepotens),but we can see the lower calypter is longer than lower the calypter and should be the same in E. praepotens, so i think you have to check if it could be Hydrophoria lancifer.
Edited by javanerkelens on 17-11-2011 23:28 |
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| philporter |
Posted on 18-11-2011 20:39
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Member Location: Lincoln UK Posts: 554 Joined: 07.02.07 |
Thank you very much Joke, I can't check until Sunday. Regards Phil Porter |
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| nielsyese |
Posted on 18-11-2011 21:59
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 Member Location: Yerseke, NL Posts: 2383 Joined: 13.02.09 |
I'm quite sure this will turn out to be Hydrophoria lancifer |
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| Michael Ackland |
Posted on 19-11-2011 10:51
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Member Location: Dorset UK Posts: 680 Joined: 23.02.08 |
It is Hydrophoria lancifer. Hind femora in E. praepotens are yellow, as is the hypopygium and sternite V. I should add that Hydrophoria diabata, which is very uncommon, can only be separated from lancifer by details in the genitalia and postabdomen. |
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| philporter |
Posted on 20-11-2011 15:29
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Member Location: Lincoln UK Posts: 554 Joined: 07.02.07 |
That looks like a good diagnosis. The mentum is shiny. Does this view of the genitalia help?
philporter attached the following image:  [77.82Kb] |
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| Michael Ackland |
Posted on 20-11-2011 17:05
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Member Location: Dorset UK Posts: 680 Joined: 23.02.08 |
It is H. lancifer. The tip of the surstyli are not like a crotchet tool, and the epandrium is not elongated |
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| philporter |
Posted on 21-11-2011 10:01
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Member Location: Lincoln UK Posts: 554 Joined: 07.02.07 |
Thank you all for your help. Regards Phil Porter |
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