Posted by exonie on 03-12-2019 21:31
#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
Edited by exonie on 03-12-2019 21:59
Posted by John Carr on 04-12-2019 15:47
#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 15:59
#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 16:43