Diptera.info :: Identification queries :: Diptera (adults)
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Drosophila unimaculata (Macquart, 1826)
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conopid |
Posted on 16-12-2014 21:38
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Member Location: United Kingdom Posts: 1039 Joined: 02.07.04 |
Before I submit this image to the gallery can I run it by an expert eye. I am confident it is D. unimaculata, but then again I have no reference to compare it with. So does it look plausible for D. unimaculata? Not the best of images, but hopefully it would be of some use. conopid attached the following image: [120.22Kb] Edited by conopid on 16-12-2014 22:04 Nigel Jones, Shrewsbury, United Kingdom |
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Paul Beuk |
Posted on 17-12-2014 11:07
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Super Administrator Location: Netherlands Posts: 19217 Joined: 11.05.04 |
I do not know unimaculata either, but the impression I get of just this single picture is immigrans, but that is easy to discount if the fore femore do not have a row of peg-like setae. Otherwise, just this one image, without clear detail of the ovipositor (for example) is not really sufficient (for me) to give a proper ID.
Paul - - - - Paul Beuk on https://diptera.info |
conopid |
Posted on 17-12-2014 23:59
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Member Location: United Kingdom Posts: 1039 Joined: 02.07.04 |
Here is the fore femur. There are 7-8 tiny spines on the antero-ventral surface. Unfortunately D. unimaculata is not described in Baechli et al, but it does say that immigrans has ten spines here. Tough one. Does immigrans have any shading on the posterior cross vein? This one does.
conopid attached the following image: [139.59Kb] Nigel Jones, Shrewsbury, United Kingdom |
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Paul Beuk |
Posted on 18-12-2014 09:51
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Super Administrator Location: Netherlands Posts: 19217 Joined: 11.05.04 |
This is D. immigrans, D. unimaculata does not have them.
Paul - - - - Paul Beuk on https://diptera.info |
conopid |
Posted on 18-12-2014 13:23
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Member Location: United Kingdom Posts: 1039 Joined: 02.07.04 |
Thanks Paul, I'll go through the key and see where I went wrong. Nigel Jones, Shrewsbury, United Kingdom |
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