Diptera.info :: Identification queries :: Diptera (adults)
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 Geomyza: G. hackmani (f)?
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| maico |
Posted on 30-03-2022 22:14
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Member Location: Posts: 64 Joined: 18.05.10 |
From a suction sample from grassland in Sussex, Enlang last September. I think G. hackmani but don't want to disregard G. balachowskyi quite yet... maico attached the following image:  [54.38Kb] Edited by maico on 30-03-2022 22:31 |
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| maico |
Posted on 30-03-2022 22:32
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Member Location: Posts: 64 Joined: 18.05.10 |
photo 2
maico attached the following image:  [68.55Kb] |
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| maico |
Posted on 30-03-2022 22:32
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Member Location: Posts: 64 Joined: 18.05.10 |
Photo 3
maico attached the following image:  [61.72Kb] |
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| Jan Willem |
Posted on 31-03-2022 08:14
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 Member Location: Waalwijk, The Netherlands Posts: 2137 Joined: 24.07.04 |
I think you are right, but to be sure you would need to study sternite 8 which is not visible in your picture (retracted). If you put the abdomen in KOH 10% for a few hours you may be able to pull out sternite 8 and study it. The dark abdomen (normally, but not always, banded in G. balachowskyi) seems to point to G. hackmani. It also looks like the post-scutellum is rather dark, which also points to G. hackmani. Otherwise it's best to name it Geomyza cf. hackmani. Edited by Jan Willem on 31-03-2022 08:17 Jan Willem van Zuijlen |
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