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Photo#932681
Black Fly with Red Eyes - Platycheirus thylax - male

Black Fly with Red Eyes - Platycheirus thylax - Male
N47.630406 W52.687293 (WGS84), Logy Bay, Northeast Avalon, Newfoundland/Labrador, Canada
June 5, 2014
Size: 7 mm nose to wingtips
Caught in a net while it was flying around a patch of dandelion blooms in our yard.

Images of this individual: tag all
Black Fly with Red Eyes - Platycheirus thylax - male Black Fly with Red Eyes - Platycheirus thylax Black Fly with Red Eyes - Platycheirus thylax Black Fly with Red Eyes - Platycheirus thylax

Moved
Moved from Platycheirus.

Keyed with Young et al 2016:

1: male -> 2
2: fore tarsomere broadened -> 3
3: fore tibia distinctly narrower than first tarsomere -> 4
4: fore tarsus with first tarsomere whitish, mid tarsus narrower, abdomen not so marked -> 5
(f46 for black/mid tarsus wide/much orange; f115 for whitish/mid tarsus slender/less orange)
5: oral margin not so produced, tergites with smaller pale spots, scutum sparsely pollinose -> 6
(f61 for produced/larger spots/much pollinosity)
6: hind tibial pile shorter, first tarsomere not so wide -> 7
(f74 for longer pile, wider tarsomere)
7: midleg with first two tarsomeres dark, not compressed -> 8
(f44 for midleg tarsomeres whitish-yellow and compressed, though these don't seem to be compressed?)
8: mid tibia with anteroventral pile shorter -> 9
(f45/107 for shorter pile, f47 for longer pile)
9: ventral surface of fore femur seems to have fine pile; mid tibia with posteroventral/posterior surface with fine, dense pile -> P. thylax

Moved

Moved
Moved from Syrphinae.

Moved
Moved from Flies.

Syrphidae
Syrphidae

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