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Chalcosyrphus? (Myolepta obscura)
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christoophe |
Posted on 01-05-2011 09:10
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Member Location: France Provence Posts: 1973 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 19:13 |
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Menno Reemer |
Posted on 01-05-2011 13:33
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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 |
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Andre |
Posted on 01-05-2011 15:32
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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 17:40
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Member Location: France Provence Posts: 1973 Joined: 06.02.08 |
Metasternum is bare, so Myolepta vara. Thank you Menno. I don't forget the gallery, Andre. |
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christoophe |
Posted on 19-09-2011 19:12
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Member Location: France Provence Posts: 1973 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. |
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