Diptera.info :: Family forums :: Syrphidae
Who is here? 1 guest(s)
 Chalcosyrphus? (Myolepta obscura)
|
|
| christoophe |
Posted on 01-05-2011 08:10
|
 Member Location: France Provence Posts: 1995 Joined: 06.02.08 |
Hello it lacks the dark bands on the mesonotum. The first tergite is lead color. I think Chalcosyrphus eunotus.  lauriaut : France : Lourmarin : 84 : 25/04/2011 Altitude : 250 - Taille : 9-10 mm Réf. : 69143  lauriaut : France : Lourmarin : 84 : 25/04/2011 Altitude : 250 - Taille : 9-10 mm Réf. : 69144  lauriaut : France : Lourmarin : 84 : 25/04/2011 Altitude : 250 - Taille : 9-10 mm Réf. : 69145 Edited by christoophe on 19-09-2011 18:13 |
|
|
|
| Menno Reemer |
Posted on 01-05-2011 12:33
|
|
Member Location: Posts: 343 Joined: 10.06.04 |
It's a Myolepta. Consider, for instance, vein R4+5 and M1: they join almost at the wing margin. It seems to be M. obscura, because of the quite long hairs on mesoscutum and scutellum. In order to be sure, check the metasternum (small sclerites between mid and hindlegs): if it's bare, it's M. vara. If it's pilose (hairy), then it's M. obscura. For more characters see PDF at: http://science.naturalis.nl/media/224421/reemer_etal_2005_myolepta_smallversion.pdf |
|
|
|
| Andre |
Posted on 01-05-2011 14:32
|
 Member Location: Tilburg, the Netherlands Posts: 2111 Joined: 18.07.04 |
And if you found out which one it is, these pics are great for the Syrphidae gallery! |
 |
|
| christoophe |
Posted on 01-05-2011 16:40
|
|
Member Location: France Provence Posts: 1995 Joined: 06.02.08 |
Metasternum is bare, so Myolepta vara. Thank you Menno. I don't forget the gallery, Andre. |
|
|
|
| christoophe |
Posted on 19-09-2011 18:12
|
|
Member Location: France Provence Posts: 1995 Joined: 06.02.08 |
It's Myolepta obscura. I checked with the key given by Menno.http://science.na...ersion.pdf There is an inversion of the criterion metasternum mentioned above by Menno, it is bare for obscura, and hairy for vara. We must change the gallery also. |
|
|
|
| Jump to Forum: |
