Diptera.info :: Family forums :: Syrphidae
Who is here? 1 guest(s)
 Syrphus ribesii ?? => probably S. torvus (f)
|
|
| Marc T |
Posted on 16-07-2013 21:32
|
 Member Location: Hamburg, Germany Posts: 248 Joined: 30.08.11 |
Hi together, is this a male from S. ribesii? Thanks for correction/confirmation! Best regards, Marc Found yesterday, July, 15th 2013 close to Wedel, S-H, Northern Germany (Tävsmoor) Edited by Marc T on 25-07-2013 05:35 |
|
|
|
| Sundew |
Posted on 16-07-2013 21:58
|
 Member Location: Berlin and Baden-Württemberg, Germany Posts: 3916 Joined: 28.07.07 |
Where is the photo? |
|
|
|
| Marc T |
Posted on 17-07-2013 06:15
|
|
Member Location: Hamburg, Germany Posts: 248 Joined: 30.08.11 |
And now with foto - thanks Sundew 
Marc T attached the following image:  [186.17Kb] Edited by Marc T on 17-07-2013 06:16 |
|
|
|
| Sundew |
Posted on 25-07-2013 00:03
|
|
Member Location: Berlin and Baden-Württemberg, Germany Posts: 3916 Joined: 28.07.07 |
Well, Syrphus is not my beloved genus... According to the wide frons, this seems to be a female, though the abdomen tip looks a bit masculine! Female is better, males are hardly separable. The femora are much too black for S. ribesii. So we have to consider S. vitripennis and S. torvus. At high magnification I think I see hairs on the eye. In this case it is S. torvus  . (Compare http://farm3.stat...5520_o.jpg.)
Edited by Sundew on 25-07-2013 00:06 |
|
|
|
| Marc T |
Posted on 25-07-2013 05:33
|
|
Member Location: Hamburg, Germany Posts: 248 Joined: 30.08.11 |
Thanks a lot, Sundew, I've just tried to zoom in in the original RAW-pic, but there's not much more to see than on the jpg (it was pretty windy that day and the damned fly didn't want to sit on one place ...) In fact, the lower half of the eye seems to be covered with hairs, but I can recognize hairs just on the frontal edge of the eye, not on the surface than on your linked pic. This might well be just an artifact from photography!? Best regards, Marc |
|
|
|
| Sundew |
Posted on 25-07-2013 19:19
|
|
Member Location: Berlin and Baden-Württemberg, Germany Posts: 3916 Joined: 28.07.07 |
Since the eyes are convex and macro pics have a shallow depth of field, one can see only parts of the hairy area. However, if there are some hairs visible there are certainly more of them present, as they are evenly distributed ! |
|
|
|
| Jump to Forum: |
