Thread subject: Diptera.info :: Diptera ID --> Hylemya urbica / variata

Posted by javanerkelens on 18-04-2015 22:49
#7

Hylemya seems right.
I had to make a terrible version of the last photo in Photoshop to see if there is an subapical ad seta on the mid femur, but it seems to be present. (on the photo just above the Arrow and barely visible)
With such subapical ad seta it could be Hylemya urbica or Hylemya variata.
The differents between those two species is mostly only with surtainty to ID if we can look at the genitals.
On outer characters the differents are:
Hylemya urbica: Longest rays of arista barely as long as width of postpedicel. Male: Frons at narrowest part more than half as wide as outer distance between posterior ocelli; frontal vitta at this point at least half as wide as frons
Hylemy variata: Longest rays of arista distinctly longer than width of postpedicel. Male: Frons at narrowest part at the most half as wide as outer distance between posterior ocelli; frontal vitta at this point less than half as wide as frons, sometimes suppressed by contiguous parafrontalia.
These characters are mostly not reliable from photos!

So I would say, save this fly as Hylemya urbica / variata

Johanna

Edited by javanerkelens on 18-04-2015 22:51