T HE ANNA L S : MAR 2 3 1921 MAGAZINE OF NATURAL H1ST0BY. [NINTH SERIES.] No. 39. MARCH 1921. XXV. — Descriptions and Records of Bees. — XC. By T. D. A. Cocke rell, University of Colorado. Anthophora optima, sp. n. ? . — Resembling A. bipartita, Sm., in colour and appear-ance, the thorax having black hair in front, fulvous posteriorly, and the wings dark fuliginous. It differs from bipartita in being considerably larger, length 22*5 mm., ant.erior wing 17; second s.m. very broad, receiving first r. n. beyond middle; hair about ocelli entirely black, with a rusty tint, though there is much dull white hair (mixed with black) on face; clypeus and labrum without light markings ; mandibles entirely black ; first abdominal segment fulvous-haired (black-haired in bipartita) ; wings darker, not reddish. The hair on the legs is entirely black. The ocelli are reddish, and in a wider triangle than those of bipartita. In Friese's key this falls next to A. semirufa, Friese, and A. basalis, Sm., but is much larger, and otherwise different. Maooki, Lydenburgh, Transvaal (F. J. Kroegor). South African Museum, to which the unique type will be returned. Anthophora fall ax, Smith. The face-markings of the male are like those of female A. circuluta, Fab. K. Kloof, Natal (Marley). Male, Jan. 15. Ann. & Mag. N. Hist. Ser. 9. Vol. vii. 14
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