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Published online by Cambridge University Press: 31 May 2012
43. Sphœophoria micrura, Osten Sacken.— Two females from Port Renfrew, one July 6, 1901, the other Aug. 16, 1902. The male was taken at Seattle, Wash. July 15, 1901.
44. Sphœrophoria sulphuripes (Thompson).— One male specimetn, taken at Glacier, July 20, 1901, belongs here questionably. It lacks the characteristic bunch of yellow pile on the hypopygium of cylindrica, but otherwise resembles that species quite closely.