Thread subject: Diptera.info :: Tephritidae, Dioxyna bidentis again? On Bidens frondosa

Posted by exonie on 03-12-2019 20:31
#1
Is this Dioxyna bidentis again - as in my previous post? NW Bulgaria, 12.09.2018
I thought i would post these too, because they are on a different plant - Bidens frondosa, the host that gave them the specific epithet.

Original post on iNaturalist with more photos:
https://www.inatu...s/16634234

static.inaturalist.org/photos/57407742/original.jpeg
static.inaturalist.org/photos/57407767/original.jpeg
static.inaturalist.org/photos/25073052/original.jpeg
static.inaturalist.org/photos/25072882/original.jpeg
Edited by exonie on 03-12-2019 20:59

Posted by Nosferatumyia on 04-12-2019 10:32
#2
Yes, it is!

Posted by John Carr on 04-12-2019 14:47
#3
exonie wrote:
Is this Dioxyna bidentis again - as in my previous post? NW Bulgaria, 12.09.2018
I thought i would post these too, because they are on a different plant - Bidens frondosa, the host that gave them the specific epithet.


The name probably comes from a different species of Bidens. B. frondosa is native to America and Dioxyna bidentis is European. I had some 3 meter tall Bidens frondosa growing next to my house last summer. They attracted some Agromyzidae but no Tephritidae that I could see.

Posted by exonie on 04-12-2019 14:59
#4
Thanks again Val.

John Carr, you are right - Bidens frondosa is introduced in Europe. I see records of this fly from several species of Bidens - seems this is its favorite genus of plants :-)
Edited by exonie on 04-12-2019 15:43