64 PROCEEDINGS OF THE NATIONAL MUSEUM, VOL. 62. 
PSILOCEPHALA SLOSSONI Coguillett. 
1893. Psilocephala slossont CoquiuLETt, Can. Ent., vol. 25, p. 227. 
The type isa female. No other specimens have been collected. 
The frons is grayish brown pollinose, with two velvet black spots at 
its middle and near the eye margins. The femora and tibiae are 
yellowish. 
Type locality—New Hampshire (Mrs. A. T. Slosson). 
Type.—In C. W. Johnson’s collection. 
PSILOCEPHALA PLACIDA Cogquillett. 
Plate 6, fig. 45. 
1894. Psilocephala placida CoQui.iETt, Journ. New York Ent. Soc., vol. 2, p. 99. 
The type female, is the only specimen known. The halteres and 
antennae are yellow and there are no black spots on the frons. The 
length is given as 12 mm. 
In material from the collection of the Pennsylvania Department 
of Agriculture there was one female specimen very near this species. 
The specimen was collected at Reedsville, Pennsylvania, May 31 
(C. Anderson). It is the specimen illustrated (fig. 45). 
Type locality.—F lorida. 
Type.—emale, No. 10420, U.S.N.M. 
PSILOCEPHALA MONTIVAGA Coquillett. 
1893. Psilocephala montivaga CoquiLuETt, Can. Ent., vol. 25, p. 226. 
In describing the species Coquillett had one male and two females, 
taken in Los Angeles County, California. It isa yellow-legged species, 
with black pollinose spots on the frons of the female. In the male 
the abdomen is wholly silvery white pollinose, its pile wholly yellow. 
Type locality.—Los Angeles County, California. 
Type and allotype.—Male and female, No. 10413, U.S.N.M. 
PSILOCEPHALA BACCATA Coquiliett. 
Plate 8, fig. 88. 
1893. Psilocephala baccata CoquiLuETT, Can. Ent., vol. 25, p. 226. 
The types are in the National Museum. Coquillett’s specimens 
were from Los Angeles and San Bernardino Counties, California. It 
is a species 5 to 7 mm. in length, wholly black in body color, includ- 
ing the halteres. The unusually short third antennal joint, the 
wholly black legs, and silvery white abdominal pile serve to distin- 
guish the species. The antennae are shown in figure 88. 
Type localities—Los Angeles and San Bernardino Counties, 
California. 
Type.—Male, No. 10411, U.S.N.M. 
