Diptera.info :: Family forums :: Syrphidae
 Syrphus Slovenia
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| DJHiker |
Posted on 09-09-2015 23:12
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Member Location: Utrecht, NL Posts: 430 Joined: 24.10.13 |
Can’t see any hairs in the lower part of the eyes, so maybe Syrphus vitripennis or S. ribesii? As it looks like a male, I believe the color of the femur cannot be used to distinguish between these two. What does the jizz suggest? Location: Smrekovec, north Slovenia. Alt. approx.. 1500m. Regards, David DJHiker attached the following image:  [183.55Kb] |
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| DJHiker |
Posted on 09-09-2015 23:13
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Member Location: Utrecht, NL Posts: 430 Joined: 24.10.13 |
view2
DJHiker attached the following image:  [176.74Kb] |
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| Sundew |
Posted on 10-09-2015 22:48
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 Member Location: Berlin and Baden-Württemberg, Germany Posts: 3917 Joined: 28.07.07 |
A bit higher magnification of the eyes would make the decision more safe (the hairs of S. torvus are very short). Given bare eyes, we have no chance to discriminate between S. vitripennis and S. ribesii. To cite our expert Dieter: "The colour of the femora is of no use to distinguish ribesii males from vitripennis. The crucial characters (microtrichia on cell bm, shape of probasisternum, setae on posterior mesocoxite) are usually not visible on fotos." Regards, Sundew |
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| DJHiker |
Posted on 11-09-2015 12:44
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Member Location: Utrecht, NL Posts: 430 Joined: 24.10.13 |
If I enlarge the original photos it looks like there are no hairs. But the photos are not that sharp and if the hairs are really tiny, I can't be 100% sure. Hairs or not, as an unambiguous species id does seem not possible anyway, I'll stick to Syrphus sp. Thanks for your reply. Regards, David |
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