Thread subject: Diptera.info :: Alliopsis silvestris

Posted by DedeLab on 12-08-2026 19:49
#1

Hello,
Could this be *Alliopsis silvestris*, please?

www.galerie-insecte.org/galerie/image/dos377/big/P8050886_DxO.jpg
ANDRE LABETAA : France : Eyne : 66800 : 05/08/2026
Altitude : 1686 m - Taille : 9 mm
Réf. : 377013

www.galerie-insecte.org/galerie/image/dos377/big/P8050884_DxO_1.jpg
ANDRE LABETAA : France : Eyne : 66800 : 05/08/2026
Altitude : 1686 m - Taille : 9 mm
Réf. : 377014

www.galerie-insecte.org/galerie/image/dos377/big/P8050883_DxO_1.jpg
ANDRE LABETAA : France : Eyne : 66800 : 05/08/2026
Altitude : 1687 m - Taille : 9 mm
Réf. : 377025

Edited by DedeLab on 19-08-2026 14:56

Posted by DedeLab on 19-08-2026 14:04
#2

Any opinion, please?

Posted by eklans on 19-08-2026 14:27
#3

My opinion: yes, male Alliopsis silvestris is correct. But I want to admit, that I have no experience with genus Alliposis...

Posted by DedeLab on 19-08-2026 14:48
#4

Thanks a lot Eric !
Greetings

Posted by John Carr on 19-08-2026 18:39
#5

Some species of Alliopsis have male and female heads similar, with narrow or broad frons. Females of species near Alliopsis sylvestris have fore tarsomeres 2-3 or 2-5 expanded.

Posted by DedeLab on 19-08-2026 18:55
#6

Thanks a lot, John, for those details. Is it only the females that have expanded tarsomeres? (That is the case here.)

Edited by DedeLab on 19-08-2026 18:55

Posted by John Carr on 19-08-2026 21:26
#7

DedeLab wrote:
Thanks a lot, John, for those details. Is it only the females that have expanded tarsomeres? (That is the case here.)


This is a female close to Alliopsis silvestris. I do not know the French species.

Expanded female fore tarsomeres appear here and there in the calyptrate flies. Alliopsis and Eutrichota and more in the Anthomyiidae. Many Tachinini. Expanded male fore tarsomeres are rare if they occur at all.