Diptera.info :: Identification queries :: Diptera (adults)
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 Zygomyia semifusca ?
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| Bruno48 |
Posted on 12-02-2025 21:20
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Member Location: France Posts: 48 Joined: 04.11.20 |
Hi I wonder if this Mycetophilidae may be Zygomyia semifusca. It is quite little (2,5mm). Thank you for help.  Bruno RIGHETTI : France : Bédouès-Cocurès : 48400 : 04/02/2025 Altitude : 607 m - Taille : 2,5 mm Réf. : 354323 .jpg) Bruno RIGHETTI : France : Bédouès-Cocurès : 48400 : 04/02/2025 Altitude : 607 m - Taille : 2,5 mm Réf. : 354325  Bruno RIGHETTI : France : Bédouès-Cocurès : 48400 : 04/02/2025 Altitude : 607 m - Taille : 2,5 mm Réf. : 354326 |
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| Walther Gritsch |
Posted on 15-02-2025 19:26
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 Member Location: Copenhagen Posts: 286 Joined: 31.01.09 |
No, it isn't Zygomyia, but Mycetophila sp. Zygomyia lacks the cubital fork. I'm not familiar with the French fauna so I won't hazard a guess as to the species.
Walther |
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| Bruno48 |
Posted on 16-02-2025 11:29
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Member Location: France Posts: 48 Joined: 04.11.20 |
Thank you Walther. Z. semifusca is the only Zygomyia with a posterior fork, but this fork is much shorter than median fork. P. chandler indicate "less than half lenght of median fork. That is the reason why I Tthought it is Z. semifusca. |
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| Bruno48 |
Posted on 16-02-2025 12:05
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Member Location: France Posts: 48 Joined: 04.11.20 |
Is the shape of anepimeron discriminant between the two genus ? If it is, this one is Mycetophila indeed ! |
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| Walther Gritsch |
Posted on 16-02-2025 22:54
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Member Location: Copenhagen Posts: 286 Joined: 31.01.09 |
Well, I've never seen Z. semifusca, but the upper branch of the posterior fork is supposed to be very weakly developed, which doesn't seem to be the case here. The shape of anepimeron and/or anepisternum is similar in the two genera. Have a look at the semifusca wing here https://sciaroidea.myspecies.info/taxonomy/44966 Walther |
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| Bruno48 |
Posted on 18-02-2025 13:22
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Member Location: France Posts: 48 Joined: 04.11.20 |
OK thank you Walther ! |
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