Posted by johnes81 on 22-04-2018 10:44
#4
The petiole is the small stem vein circled in the attached photo. I've not seen this on pediculata either. Dr. Rognes informed me that the prototype of pediculata has this petiole. He mentions this fact in his book as well. I cannot match the fly in the photos with two other Pollenia known to have a petiole, so i am left with pediculata or a variation of the other two possibilities.
more snow? i hope that you stay warm.