Diptera.info :: Identification queries :: Diptera (adults)
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 Rhagio with bicolor stigma
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| clovis |
Posted on 16-11-2023 16:09
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Member Location: North France, lille Posts: 908 Joined: 08.06.10 |
Hi, Here is a Rhagio from southern Alps I collected during this spring. With bicolor stigma, it should be either R maculatus or R immaculatus (Or R chrysostigma, but thorax has some black). Would you make it a dark R immaculatus? It doesn't have the black ring on femur one of R maculatus, but neither the abdominal pattern of R immaculatus  clovis : France : Breil-sur-Roya : 06540 : 15/06/2023 Altitude : 1569 m - Taille : 10 mm Réf. : 333912  clovis : France : Breil-sur-Roya : 06540 : 15/06/2023 Altitude : 1569 m - Taille : 10 mm Réf. : 333910 |
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| Zeegers |
Posted on 18-11-2023 10:37
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Member Location: Soest, NL Posts: 18322 Joined: 21.07.04 |
very interesting ! No way this is immaculatus. i need to consider the options. Theo |
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| Zeegers |
Posted on 18-11-2023 11:10
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Member Location: Soest, NL Posts: 18322 Joined: 21.07.04 |
So, you got 'only' one specimen ? The only reason I see why it should not be Rh. maculatus is because of the yellow front femur. If that is the only reason, I'd consider it for now an aberrant maculatus, till more turn up. Theo |
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| clovis |
Posted on 20-11-2023 14:33
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Member Location: North France, lille Posts: 908 Joined: 08.06.10 |
Only one sadly!  I'll stay on aberrant R maculatus then! Many thanks for your opinion. 
Edited by clovis on 20-11-2023 14:33 |
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| Zeegers |
Posted on 20-11-2023 20:34
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Member Location: Soest, NL Posts: 18322 Joined: 21.07.04 |
If you check waarnemingen.be for males of maculatus, you find that a vague or faded dark ring on front femur is actually quite common. Theo |
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but don't see the image in the post.