Diptera.info :: Identification queries :: Diptera (adults)
 Dolichopodidae; Sciapodinae; Chrysosoma?, Zambia (1)
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| Will van Niekerk |
Posted on 18-01-2012 23:50
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 Member Location: UK Posts: 508 Joined: 16.11.11 |
Although these two images are not of a single fly doing press-ups (which would, however, be entertaining), I believe that they are the same species on the basis of being on the same - very small - pond on the same day (albeit three hours apart), and looking a little too similar for me to feel that they are likely to be vastly different species. I do, however, feel obliged to put both images up, because while one of them is so obviously stilt-legged that I will be very disappointed when I am inevitably informed that it is not Dolichopodidae, the one that is in better focus has managed to crouch in such a manner that its legs seem to be much more conservative, and forces me to question whether it is crouching or its associate is stretching its legs for a better view. Apologies for yet another lengthy preamble, and details: Place: Chongwe District, Lusaka Province, Zambia. Habitat: Bulrushes/Nile cabbages on an ornamental pond. Date: 24.10.2011 Size: 4mm? Will van Niekerk attached the following image:  [142.21Kb] Edited by Will van Niekerk on 26-01-2012 11:01 |
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| Will van Niekerk |
Posted on 18-01-2012 23:50
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Member Location: UK Posts: 508 Joined: 16.11.11 |
And second (Crouching) picture:
Will van Niekerk attached the following image:  [168.48Kb] |
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| jorgemotalmeida |
Posted on 18-01-2012 23:53
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 Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
Sciapodinae. Just for the record: the correct spelling of the family is Dolichopodidae.
Edited by jorgemotalmeida on 18-01-2012 23:55 |
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| Will van Niekerk |
Posted on 18-01-2012 23:59
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Member Location: UK Posts: 508 Joined: 16.11.11 |
Thanks for the correction! Sorry for the error, I'm hoping it was a typo, and quickly correcting it in any case. Also thanks for the subfamily! Edited by Will van Niekerk on 19-01-2012 00:01 |
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| Will van Niekerk |
Posted on 19-01-2012 00:27
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Member Location: UK Posts: 508 Joined: 16.11.11 |
Could it be Condylostylus? |
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| John Carr |
Posted on 19-01-2012 02:18
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 Super Administrator Location: Colorado, USA Posts: 10656 Joined: 22.10.10 |
The second one reminded me a lot of one of the American species groups of Condylostylus, but on closer examination I see the legs have few bristles. The long middle legs of the first are found in some species of other American genera of Sciapodinae. In Dolichopodidae similar male secondary sexual characters recur in unrelated groups. I don't know if they are the same. I have seen different species of Condylostylus on adjacent leaves. At least three species groups live near me, possibly only three species but possibly more. |
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| Igor Grichanov |
Posted on 19-01-2012 08:55
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 Member Location: St.Petersburg, Russia Posts: 1818 Joined: 17.08.06 |
Apical stylus and blackish wings vote for Chrysosoma, although posterior cross vein is not strongly sinuate.
Igor Grichanov |
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| Will van Niekerk |
Posted on 19-01-2012 12:27
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Member Location: UK Posts: 508 Joined: 16.11.11 |
I'm afraid I only took the photographs shown, so this is the best I can offer for the wing:
Will van Niekerk attached the following image:  [94.8Kb] |
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