Diptera.info :: Identification queries :: Diptera (adults)
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 Drosophilidae? => Drosophila (unimaculata?)
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| sbushes |
Posted on 29-11-2021 13:35
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Member Location: Posts: 649 Joined: 29.04.21 |
Shrewsbury 28/11 hiding in leaf litter didn't fly, preferred to run around hiding If Drosophilidae, seems to key to Drosophilinae : Scaptodrosophila deflexa perhaps ? https://sites.google.com/view/mikes-insect-keys/mikes-insect-keys/keys-for-the-identification-of-british-true-flies-diptera/keys-for-the-identification-of-british-drosophilidae sbushes attached the following image:  [155.58Kb] Edited by sbushes on 29-11-2021 18:05 |
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| sbushes |
Posted on 29-11-2021 13:36
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Member Location: Posts: 649 Joined: 29.04.21 |
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sbushes attached the following image:  [121.06Kb] |
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| sbushes |
Posted on 29-11-2021 13:36
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Member Location: Posts: 649 Joined: 29.04.21 |
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sbushes attached the following image:  [171.61Kb] |
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| sbushes |
Posted on 29-11-2021 13:37
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Member Location: Posts: 649 Joined: 29.04.21 |
wing
sbushes attached the following image:  [121.43Kb] |
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| sbushes |
Posted on 29-11-2021 13:37
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Member Location: Posts: 649 Joined: 29.04.21 |
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sbushes attached the following image:  [173.03Kb] |
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| sbushes |
Posted on 29-11-2021 13:39
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Member Location: Posts: 649 Joined: 29.04.21 |
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sbushes attached the following image:  [151.52Kb] Edited by sbushes on 29-11-2021 13:45 |
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| sbushes |
Posted on 29-11-2021 13:45
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Member Location: Posts: 649 Joined: 29.04.21 |
further images here : www.inaturalist.o.../102144270 |
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| Jan Maca |
Posted on 29-11-2021 17:29
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Member Location: Posts: 1250 Joined: 25.03.10 |
Difficult; oviprovector seems to be invaginated. Costal index is very high -about 4, so that I think it could be D. unimaculata. |
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| sbushes |
Posted on 29-11-2021 18:07
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Member Location: Posts: 649 Joined: 29.04.21 |
Ok thanks Jan! Is there anything further I should capture which might help resolve? Or just a difficult one regardless of angle? (still have the fly atm) Edited by sbushes on 29-11-2021 18:07 |
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| Carnifex |
Posted on 29-11-2021 18:15
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 Member Location: Vienna, Austria Posts: 1946 Joined: 23.06.15 |
I don't see any infuscation in the wing for D. unimaculata. What about dark female D. suzukii?
Cheers, Lorin Font Color All requests are from the urban area of Vienna, if not otherwise stated. My Diptera observations (and other living forms) can be found here, and corrections or comments over there would also be appreciated. |
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| sbushes |
Posted on 29-11-2021 19:19
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Member Location: Posts: 649 Joined: 29.04.21 |
I've noticed my flash has bleached out visible infuscation at times. But on Mike's key the split to go to D.unimaculata vs D.suzuki seems to be 6 vs 8 rows of acrostichal hairs too, which would point more to the latter ? Note also that the fly is darker to the eye than appears on many images above - thorax and abdomen appeared notably dark grey - closer to the 2nd and 4th image above. The other images are much more bleached / off colour than reality due to my poor photography skills and lack of post-production. Edited by sbushes on 29-11-2021 19:23 |
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| Jan Maca |
Posted on 30-11-2021 05:48
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Member Location: Posts: 1250 Joined: 25.03.10 |
I think that the oviprovector is more or less invaginated. White spots between oviscapt and last tergite are likely shines or (in last picture) some dust. Preparation of the abdominal end would decide. Sometimes it cannot be decided if the number of acrostichals rows is six or eight and this character uses to be omitted from keys. Conspicuously narrow wings (3rd and 4th picture) with high costal index suggest some Drosophila s.str. |
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| sbushes |
Posted on 02-12-2021 17:49
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Member Location: Posts: 649 Joined: 29.04.21 |
Ok, thanks Jan, good to know |
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