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Hello,


For this Cylindromyia photographed in the south of France, I tried to eliminate the species that I could.

- bicolor : top of the abdomen red
- intermedia : 2nd antennal article yellow
- interrputa and pusilla : lack apical scutellar bristle
- rubida and rufipes : orange legs
- rubifrons : yellow frontal band
- brevicornis, pilipes, brassicaria, xylotina : no pv on hind tibia

It's more difficult with auriceps. This species, according to the key of central Europe Tachinidae, generally has discal bristles, but in a lot of pictures here I can't see these bristles. According to the key again, this species does not have pd bristles on tibia 2, but I think I can see pd on a few pictures in the forum.

In France, we have too : scapularis and hermonensis.

Any information on scapularis and hermonensis, and an idea for this Cylindromyia ?


Jessica Joachim : France : Cuq : 81570 : 19/06/2021
Altitude : 298 m - Taille : 10 mm environ ?
Réf. : 297089


Jessica Joachim : France : Cuq : 81570 : 19/06/2021
Altitude : 298 m - Taille : 10 mm environ ?
Réf. : 297090


Jessica Joachim : France : Cuq : 81570 : 19/06/2021
Altitude : 298 m - Taille : 10 mm environ ?
Réf. : 297091


Jessica Joachim : France : Cuq : 81570 : 19/06/2021
Altitude : 298 m - Taille : 10 mm environ ?
Réf. : 297092

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Hi Jessica,

No, your supposed pv is avtually an av. Making these assessments from pictures is extremely tricky. Hermonensis / scapularis are very different.

This is brassicaria group, very likely brassicaria.

Theo

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Thank you very much Zeegers.

For hermonensis/scapularis, they are very different, visually, in color ?

And here, is the setae on the left of t3 a pv ? Or another ?


Jessica Joachim : France : Cuq : 81570 : 19/06/2021
Altitude : 298 m - Taille : 10 mm environ ?
Réf. : 297106

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There is the option of a froum search. You find this

https://diptera.info/forum/viewthread.php?forum_id=5&thread_id=52779

antenna much more orange.

Theo

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Ok, thank you !
So, it's the same for hermonensis ? I can't find anything about this species in the forum search.

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yes.

So best advice is to start with the common species.
Once you have seen a hunderd brassicaria, you will pick out the rare ones with ease. Until that time ….


Theo

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Ok !

Thank you very much :)