18 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. 62, 
Distribution.—The single male specimen of this species examined 
was taken at Garces, Arizona, August, by Mr. Biedermann. ‘This 
specimen answers the original description very well; it is in the col 
lection of the department of agriculture, Harrisburg, Pennsylvania. 
HENICOMYIA VARIPES Krdéber. 
1912. Henicomyia varipes KROBER, Stett. Ent. Zeit., p. 213. 
In this species the third antennal joint is proportionately shorter 
than in H. hubbardi. The face is described as black, bare; the palpi 
much asin H. hubbardi. The wings are hyaline, with two blackish 
brown crossbands. 
Type locality.— Mexico City, Mexico. 
Type.—A unique male in Kroéber’s collection. 
Genus NEBRITUS Coquillett. 
1894. Nebritus CoquitLET, Journ. New York Ent. Soc., vol. 2, p. 98. 
Head flattened, slightly longer than broad, the frons almost hori- 
zontal; eyes almost round, the vertical diameter a little greater than 
the horizontal; eyes of male separated by a space about twice as wide 
as the ocellar tubercle. First antennal joint very large, almost as 
long as the head, shining, with strong bristles; second joint very small, 
the third rather long and slender, but distinctly shorter than the 
first; second and third joints dull. There is a distinct style on the 
outside of the third antennal joint situated in a hollow, or groove, 
about three-fourths the distance from the base (Coquillett and Kréber 
stated that the style was wholly wanting!). Proboscis slender and 
projecting beyond the prominent frons, the Jabellae almost as long as 
the proboscis proper. Palpi shorter than proboscis and subclavate. 
Face bare and retreating below. Thorax rather flattened, about one- 
half as long as the abdomen in the male and shorter in proportion in 
the female. Male genitalia rather small, but distinctly visible under 
low power, the anal flaps conspicuous. Pulvilli present, the empodia 
hairlike. Venation normal for the family; cell first M-2 (anal cell) 
closed, other cells on the wing margin open. 
‘Name from the Greek nebritos, like a fawn skin.) 
Genotype.— Nebritus pellucidus Coquillett. 
NEBRITUS PELLUCIDUS Coquillett. 
Plate 3, figs. 8, 9 and 10. 
1894. Nebritus pellucidus Coqurtiett, Journ. New York Ent. Soc., vol. 2, p. 98. 
The original description is quite comprehensive. The length is 
7 to 10 mm. 
Type locality.—Southern California. 
Type.—Female, Cat. No. 10424, U.S.N.M. 
