July, '07] ENTOMOLOGICAL NEWS. 293 The Bees of Nebraska. III. By MYRON H. SWENK. Family MACROPIDAE. Genus MACROPIS Panzer. 1. Macropis patellata Patton. Meadow, Nebraska, July 14, 1906, three males collected at a small white Asclepias (P. R. Jones). 2. Macropis clypeata n. sp. c?. Length / mm. ; apparently very close to M. morsei Rob., but differing from the description of that species as follows : Pubescence of mesonotum pale and black intermixed, the dark hairs predominating only on the disk ; only the clypeus yellow, the spots on the sides of the face and on mandibles lacking; wings smoky, the nervures and stigma black ; tarsi wholly black ; first two abdominal segments scarcely depressed apically and not fasciate. Type Warbonnet Canon, Sioux County, Nebraska, July 13, 1901, on Pentstcmon (M. Cary). $ . Differs at once from ciliata, patellata and steironematis in the face marks and size. Family DUFOUREIDAE. Genus HALICTOIDES Panzer. 1. Halictoides marginatus Cresson. Entire State (Lincoln, West Point, Neligh, Long Pine, Gordon, Bridgeport, Crawford, Glen and Warbonnet Canon), flying in great abundance at the flowers of the various species of Hdianthus, and also on Grindclia sqitari'osa, Solidago rigida, Convoli'uhts sp. and Cardans alfissintns, on the three last named flowers but rarely. In eastern Nebraska the season of flight is from August 7 to September 18, in Sioux County somewhat earlier, from June 26 to August 29. 2. Halictoides maurus Cresson. Sioux County, Nebraska, June 13-28, at flowers of Cam-panula pctiolala. Family NOMIIDAE. Genus NOMIA Latreille. i. Nomia foxii Dalla Torre. Lincoln, West Point and Duncly County, Nebraska, May 31 to July 12 at flowers of Petalostemon violaccus.
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