Diptera.info :: Family forums :: Syrphidae
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 Icelandic Syrphus torvus 2
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| sbushes |
Posted on 23-05-2023 16:13
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Member Location: Posts: 649 Joined: 29.04.21 |
... Follow-up to other post, to see if this shows the femur coloration necessary for triple-checking? Observed Reykjavik 22nd May 2023 Presumed to be S.torvus as with the other... but markings noted as being irregular Other post here https://diptera.i..._id=109874 iNaturalist listing https://www.inatu.../163168857 ... sbushes attached the following image:  [155.03Kb] Edited by sbushes on 23-05-2023 16:19 |
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| sbushes |
Posted on 23-05-2023 16:14
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Member Location: Posts: 649 Joined: 29.04.21 |
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sbushes attached the following image:  [154.64Kb] |
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| sbushes |
Posted on 23-05-2023 16:15
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Member Location: Posts: 649 Joined: 29.04.21 |
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sbushes attached the following image:  [189.93Kb] |
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| sbushes |
Posted on 23-05-2023 16:15
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Member Location: Posts: 649 Joined: 29.04.21 |
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sbushes attached the following image:  [205.3Kb] |
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| sbushes |
Posted on 23-05-2023 16:17
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Member Location: Posts: 649 Joined: 29.04.21 |
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sbushes attached the following image:  [117.23Kb] Edited by sbushes on 23-05-2023 16:17 |
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| sbushes |
Posted on 23-05-2023 16:20
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Member Location: Posts: 649 Joined: 29.04.21 |
Correctly showing femur 3 basal 3/4 black? ( not sure quite what the adpressed hairs look like or if they should be visible ) |
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| eklans |
Posted on 23-05-2023 16:51
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Member Location: Franconia, Germany Posts: 3885 Joined: 11.11.18 |
Clearly ¾ - the alternative, S. vitripennis, has only ⅔ black. And to be honest, I also have never seen the adpressed hairs on my photos... In my opinion - based on van Veen's key - your fly is S. torvus! Greetings, Eric Kloeckner |
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| Karsten Thomsen |
Posted on 23-05-2023 21:13
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 Member Location: Hjortshøj, Jutland, Denmark Posts: 643 Joined: 07.01.16 |
Incredibly dark specimen. |
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| sbushes |
Posted on 23-05-2023 22:02
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Member Location: Posts: 649 Joined: 29.04.21 |
Repeating what I stated on the parallel thread for clarity : ...other observations of hoverflies in Iceland have been noted as being dark on iNaturalist. When I raised this with Erling Olafsson at the National Institute here, he said it was very typical for Icelandic specimens that they would be darker than their continental equivalents. |
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