Diptera.info :: Identification queries :: Diptera (adults)
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 Bithia
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| Jessica |
Posted on 22-01-2025 16:31
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Member Location: Posts: 254 Joined: 28.08.18 |
Hello, I think it's a male Bithia ? But I can't choose between Bithia demotica and Bithia modesta. Maybe even Bithia immaculata, I find that T2 is not shaded all the way to the posterior margin, but the dark spot is really very close to the posterior margin so I don't know if that matters I have other pictures if needed  Jessica Joachim : France : Serviès : 81220 : 15/06/2024 Altitude : 295 m - Taille : 10 mm environ Réf. : 353815 |
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| John Carr |
Posted on 22-01-2025 17:15
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 Member Location: Massachusetts, USA Posts: 10233 Joined: 22.10.10 |
If you take the alternative with excavation of T1+2 not extending to posterior margin you end up at a group of species with wider frons. As I interpret the keys it can't be Bithia immaculata because the abdomen is not immaculate. I can not distinguish demotica, modesta, and proletaria. Cerretti's key says distal half of scutellum yellow for modesta and scutellum almost entirely yellow for proletaria. Your fly might fit either alternative. |
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| Jessica |
Posted on 22-01-2025 17:37
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Member Location: Posts: 254 Joined: 28.08.18 |
Thank you so much. I said immaculata but I rather wanted to say acanthophora. I didn't know Bithia proletaria. It's not noted from France, but from Italy, it's not very far. What about the color of the scutellum of demotica ? Is this key accessible? Edited by Jessica on 22-01-2025 17:39 |
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| John Carr |
Posted on 22-01-2025 20:44
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Member Location: Massachusetts, USA Posts: 10233 Joined: 22.10.10 |
Cerretti's book is I tachinidi della fauna italiana (Diptera Tachinidae).
Edited by John Carr on 22-01-2025 20:44 |
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