Diptera.info :: Identification queries :: Diptera (adults)
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 Muscid ---> Helina sp. [f]
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| Roger Thomason |
Posted on 30-06-2022 22:37
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 Member Location: Mossbank,Shetland Isles. Posts: 5028 Joined: 17.07.08 |
Female Helina evecta in the Gallery seems the best match I can find for this one I photographed in my garden last week. Correct or...?
Roger Thomason attached the following image:  [166.13Kb] Edited by Roger Thomason on 04-07-2022 10:15 |
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| Roger Thomason |
Posted on 30-06-2022 22:38
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Member Location: Mossbank,Shetland Isles. Posts: 5028 Joined: 17.07.08 |
2nd pic...
Roger Thomason attached the following image:  [163.59Kb] |
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| Roger Thomason |
Posted on 30-06-2022 22:39
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Member Location: Mossbank,Shetland Isles. Posts: 5028 Joined: 17.07.08 |
close up...[ish]
Roger Thomason attached the following image:  [181.34Kb] |
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| eklans |
Posted on 01-07-2022 19:52
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Member Location: Franconia, Germany Posts: 2391 Joined: 11.11.18 |
Hi Roger, is not evecta which should have black legs and I haven't found the right one yet.
Greetings, Eric |
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| eklans |
Posted on 02-07-2022 09:53
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Member Location: Franconia, Germany Posts: 2391 Joined: 11.11.18 |
Hi Roger, after agonizing over this fly I have to propositions: 1. if the meron has fine hairs below the posterior spiracle: - eyes almost bare, apices of femora and both posterior pairs of tibiae reddish yellow: H. trivittata 2. if radial node bare on both sides: - at most apices of mid and hind femora yellow - prealar shorter than p npl, nearly indistinct - fore tarsomeres not dilated - scutellum entirely bare underside? - hind tibia with 1-4 pd in basal half - 4 post dc - hind femur with 1 or more pv near apex longer than depth of femur, longest aristal hairs longer than postpedicel width? - ...scutal stripes narrow & indistinct: H. setiventris But in the end it's a guess... Based on the key of Manual of Central European Muscidae (Gregor, Rozkošný, Barták, Vaňhara) Edited by eklans on 02-07-2022 10:00 Greetings, Eric |
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| Stephen R |
Posted on 02-07-2022 20:29
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 Member Location: Clitheroe Lancashire UK Posts: 2391 Joined: 12.06.09 |
Hi Roger and Eric, Looking at the species descriptions in Gregor &c, H. trivittata seems to be ruled out by 'Female hind femur without posteroventrals', but setiventris looks plausible in this repect - 'Female pvs before apex of hind femur long'. But there's also meant to be a complete row of avs. |
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| Roger Thomason |
Posted on 04-07-2022 10:14
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Member Location: Mossbank,Shetland Isles. Posts: 5028 Joined: 17.07.08 |
Hi Eric and Stephen, thanks for your responses to this thread. You aren't supposed to agonize over a fly Eric, really!! I'm happy I managed to get the genus correct so lets just call it a Helina sp. and I can stick a photo in my Flickr page without some member of The FLY POLICE giving me a hard time. Regards Roger PS. Now if someone could go agonize over my other unanswered posts I would appreciate it... THX!!  |
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