Thread subject: Diptera.info :: Pollenia rudis?
Posted by fredroh on 16-07-2026 14:03
#1
Pollenia from Trondheim, Norway. 15.07.2026
Posted by fredroh on 16-07-2026 14:03
#2
2
Posted by fredroh on 16-07-2026 14:03
#3
3
Posted by eklans on 17-07-2026 15:50
#4
Difficult to be sure: basicosta seems to be dark and fore tibia has one posteroventral. Both characters are possible but rarely for
rudis.
I think I see one anterodorsal on mid tibia - this points to
P. angustigena, while
rudis has 2-3 ad.
from Olga Sivell (2021): Blow flies
Posted by fredroh on 17-07-2026 19:10
#5
Thank you Eric!!
Upon further inspection, I count 2 ad on the mid tibia, and see a light basicosta (if I am looking at the right structures). Not well visible from the first photos, sorry about that.
Posted by fredroh on 17-07-2026 19:10
#6
basicosta
Posted by eklans on 18-07-2026 10:06
#7
Thanks for the photos! Yes, basicosta is pale, but I think the 2nd ad is part of the pre-apicals.
"examination of genitalia is strongly advised. Slide preparation may be required for females" citation from Olga Sivell (2021): Blow flies
If you really want to be sure...
Posted by fredroh on 18-07-2026 15:18
#8
Thank you Eric!
I will see what I can do!