Diptera.info :: Identification queries :: Diptera (adults)
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 Dasyrhamphis sp.
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| thiery |
Posted on 20-06-2023 17:35
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Member Location: Posts: 8 Joined: 18.06.23 |
 thiery : France : Saint-Chamas : 13250 : 17/05/2023 Altitude : 7 m - Taille : 17,8 mm. Réf. : 323089  thiery : France : Saint-Chamas : 13250 : 17/05/2023 Altitude : 7 m - Taille : 17,8 mm. Réf. : 323090  thiery : France : Saint-Chamas : 13250 : 17/05/2023 Altitude : 7 m - Taille : 17,8 mm. Réf. : 323091 Hello, Date of observation: 17/05/2023 Saint-Chamas (France - Bouches-du-Rhône) Size: approx. 18 mm. The following points were noted (using binoculars if necessary): - Legs single-coloured black; palps black with black bristles. - Antennal segment 3 with a long, pointed, hook-shaped dorsal tooth pointing forwards and sprinkled with silver. - Wings smoky. - Pale yellow spoons fringed with light brown. With these few details and the photos attached, is it possible to decide between anthracinus or ater? Thank you for your comments Thiery |
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| Zeegers |
Posted on 21-06-2023 16:25
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Member Location: Soest, NL Posts: 18791 Joined: 21.07.04 |
So, based on the first pic, it seems obvious it should be anthracinus male, but I think the pic is deceiving. The second pic shows both dark beard and darkened calypter, both indicating ater. And in the second pic, contrary to the first pic, the wing seems uniformly darkened. So, in the end, D. ater male seems to me very likely. Theo |
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| thiery |
Posted on 21-06-2023 17:10
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Member Location: Posts: 8 Joined: 18.06.23 |
Zeegers wrote: So, based on the first pic, it seems obvious it should be anthracinus male, but I think the pic is deceiving. The second pic shows both dark beard and darkened calypter, both indicating ater. And in the second pic, contrary to the first pic, the wing seems uniformly darkened. So, in the end, D. ater male seems to me very likely. Theo Merci Theo ! |
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