Posted by Stephen R on 29-02-2012 14:56
#13
Just back from an emergency gall-bladder removal to find over 12 pages of Diptera adults to speed my recovery :D
I went for
P. aestiva on the basis of the peristomal margin, but I agree that on this viewpoint the choice between 'strongly projecting' and 'not projecting' is a bit tricky.