Moved from Platycheirus.

Keyed with Young et al 2016:

1: male -> 2
2: fore tibia and tarsi not modified -> 49
49: posterior forefemur with uniform setae -> 53
53: fore and mid tibiae with strong setae, face with rippled pollinosity -> 54
54: first tarsomere with weak short pile -> 56
56: pollinosity not uniform, arista not so thickened -> 57
57: pollinosity rippled -> 58
58: fore tibia with setae not nearly as thick as arista, lateral pile of tergites pale -> 59
59: face with ripples rather than punctures -> 63
63: face fairly strongly produced, fore and mid femora broadly orange -> 64
64: face produced ontly to tubercule, stripe to antennal base -> P. obscurus

Moved from ID Request.