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 Syrphus ribesii?
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| Alvesgaspar |
Posted on 09-05-2014 15:22
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 Member Location: Lisbon, Portugal Posts: 573 Joined: 24.08.07 |
I have classified this fly as a S. ribesii but I'm no longer sure. Could it be S. torvus? Found in Portugal, a few day ago. Thanks, Joaquim Alvesgaspar attached the following image:  [91.25Kb] Edited by Alvesgaspar on 09-05-2014 15:23 |
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| Sundew |
Posted on 09-05-2014 17:06
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 Member Location: Berlin and Baden-Württemberg, Germany Posts: 3916 Joined: 28.07.07 |
Females are rather easily specifiable as to the colour of the hind legs. S. ribesii has completely yellow hind femora; I think I can see that through the wing. Besides, the eyes of S. torvus are hairy (compare http://farm3.stat...5520_o.jpg). So stick to S. ribesii! Regards, Sundew |
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| Alvesgaspar |
Posted on 09-05-2014 17:25
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Member Location: Lisbon, Portugal Posts: 573 Joined: 24.08.07 |
Thank you, Sundew! |
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| Fred Fly |
Posted on 09-05-2014 20:53
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Member Location: Germany Posts: 395 Joined: 19.07.11 |
No, it is again Epistrophe even mesonotum is (secondary) dull. |
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| Sundew |
Posted on 09-05-2014 22:57
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Member Location: Berlin and Baden-Württemberg, Germany Posts: 3916 Joined: 28.07.07 |
Ah - I see, the shape of the yellow bands is indeed different! In Syrphus the middle part of the bands is usually narrowed, so Epistrophe fits better, though the bands should be more orange than yellow... The dullness of the mesonotum is vexing - once I posted a fly with a comparable mesonotum (http://www.dipter...d_id=13355) that was identified as a Syrphus. Some specimens of Epistrophe and Syrphus (and Parasyrphus) might be quite difficult to tell apart!
Edited by Sundew on 10-05-2014 12:02 |
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