Thread subject: Diptera.info :: Tachinidae : Bithia ? => Bithia modesta

Posted by Jessica on 04-02-2024 17:30
#1
Hello,

Is this fly a Bithia ? May be B. acanthophora ?

www.galerie-insecte.org/galerie/image/dos336/big/mouche-3.jpg
Jessica Joachim : France : Albine : 81240 : 11/06/2022
Altitude : 912 m - Taille : 8 mm environ
Réf. : 336395

www.galerie-insecte.org/galerie/image/dos336/big/mouche-2.jpg
Jessica Joachim : France : Albine : 81240 : 11/06/2022
Altitude : 912 m - Taille : 8 mm environ
Réf. : 336396

www.galerie-insecte.org/galerie/image/dos336/big/mouche.jpg
Jessica Joachim : France : Albine : 81240 : 11/06/2022
Altitude : 912 m - Taille : 8 mm environ
Réf. : 336397
Edited by Jessica on 05-02-2024 19:24

Posted by Zeegers on 04-02-2024 19:16
#2
Bithia yes, I'd say female B. modesta

Theo

Posted by Jessica on 04-02-2024 19:32
#3
Thank you very much !
In this key, it's written that B. modesta doesn't have marginal bristles on T2.
Mine has no ? I see two dorso marginal bristles
Edited by Jessica on 04-02-2024 19:33

Posted by John Carr on 04-02-2024 20:17
#4
I see two discal bristles near the front of T3.

Posted by Zeegers on 04-02-2024 21:03
#5
Jessica, so the first two segments are merged, called syntergite 1&2. That makes tha apparent second segment actually the third.
So syntergite 1&2 has ni marginals here. https://uk.inaturalist.org/taxa/321744-Bithia-modesta

Theo
Edited by Zeegers on 06-02-2024 16:40

Posted by Jessica on 05-02-2024 19:23
#6
Ahhh yes exactly !
That’s where my mistake comes from. Thanks Smile