Thread subject: Diptera.info :: Pollenia rudis (Fabricius, 1794) male

Posted by johnes81 on 27-09-2018 17:44
#4

Hello Miguel,

the surstyli are curved more like pediculata but the cerci/surstyli are angled in the photo. Sometimes surstyli can appear to be curved at certain angles or if the surstyli are slightly twisted. I've seen this before with a rudis male but i always straighten them and dissect them for a perfect dorsal view. Normally i will agree with rudis but the curve is a bit stronger than i expected. Are you certain that there are no hairs at the node near the sc? the hairs are not very easy to detect at times. If you are certain that there are no hairs, then try to further dissect the genitalia for a better view. See if the surstyli are twisted a bit. If you can achieve a perfect dorsal view and the curve is significantly reduced, then i can agree with rudis.

Please post your photos of Pollenia leclercqiana. Remember to show the wing because Pollenia leclercqiana has a petiolate r4+5. Also, Pollenia leclercqiana is a member of the amentaria group, so the abdomen will be black.

Best wishes,
John