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For Insects, Spiders & Their Kin
For the United States & Canada
Photo#545115
Thick-headed fly - Physoconops bulbirostris - female

Thick-headed fly - Physoconops bulbirostris - Female
Spiderweb, Aiken County, South Carolina, USA
July 12, 2011

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Thick-headed fly - Physoconops bulbirostris - female Thick-headed fly - Physoconops bulbirostris - female Thick-headed fly - Physoconops bulbirostris - female

Moved
Moved from Subgenus Pachyconops.

The infuscation of the wing here matches very well with that of P. bulbirostris in Fig. 73 of Stuke & Skevington (2007). In particular, the basal radial cell is hyaline, the 1st posterior cell is mostly dark, the 1st submarginal cell is hyaline apically, and the costal cell is light.

Other key characters visible here for P. bulbirostris include: frons entirely black; pleural stripe indistinct in upper half; 3rd antennal segment slender & longer than the 2nd; cheek dark black (barely visible under the eye here), the humeral spot, and overall color. In fact, the agreement between this individual and Williston's description of the synonym Conops sequax is almost perfect...the only descrepancy being the lack of white pollinose dusting on the 6th tergite here.

Moved
Moved from Physoconops.

Moved
Moved from Physocephala.

Moved
Moved from Thick-headed Flies.