ART. 4, REVISION OF THE FAMILY THEREVIDAE 
COLE. 19 
From the examination of several perfect specimens the following 
notes have been added: Proboscis blackish brown; second and third 
antennal joints velvety black, in two females the first joint entirely 
yellowish. There is a shining black stripe from the ocellar tubercle 
to the base of the occiput. The two median yellow vittae of the thorax 
are narrow, the yellow stripe above the pleural suture thickly covered 
with yellow tomentumlike pile, which is also present on the sides of 
the scutellum. ‘The pile on the first four abdominal segments of the 
female is yellowish, the rest of the abdominal pile black and the cir- 
clet of bristles at the tip of the abdomen is black. The male genitalia 
(see fig. 10) are reddish yellow with long black pile. The male 
abdomen is yellowish gray pollinose and lacks the black spots present 
in the female, the posterior margin of the second segment is whitish; 
all of the dorsum of the abdomen is faintly silvery with short reclinate 
black pile; the pile on the venter and sides is longer, erect, and 
whitish; the sides of the abdomen are shining black and there are 
two shining black stripes on the venter; sixth segment scarcely 
visible, black pilose. Wing veins heavy and black, with a very faint 
outline of brown which gives them a heavier appearance; base of the 
wing yellowish. 
Distribution.—All of the known specimens have been collected in 
California; specimens were examined from the following localities: 
Claremont (Cole), [Cole]; unknown locality in California (Univ. 
Minn. coll.); Bryson, May 18, 1920 (E. P. Van Duzee); Keen Camp, 
Riverside County, June 6 (EZ. P. Van Duzee), [both Cal. Acad. Sci.]. 
Genus OZODICEROMYIA Bigot. 
1889. Ozodiceromyia Biaor, Ann. Soc. Ent. France, vol. 9, p. 321. 
The original description is translated as follows: 
Antennae much longer than the head, almost cylindrical, pilose, first segment 
longer than the head, second small, third equal to the first, with three or four indis- 
tinct rings, last segment, pyriform, blunt, the bristles indistinct; labrum narrow, 
genitalia apically short spinose (female); face bare, fourth posterior cell and anal 
cell closed before the margin of the wing. 
Type.—In the Bigot collection, owned by J. E. Collin, Newmarket, 
England. 
Only one species is known; from Mexico. 
OZODICEROMYIA MEXICANA Bigot. 
1889. Ozodiceromyia mexicana Bigot, Ann. Soc. Ent. France, vol. 9, p. 321. 
Black, hardly shining; thorax narrowly and obscurely bilineate; 
face and frons ornamented with shining black; halteres and legs ru- 
fous; femora, base broadly, apices of tibiae, anterior and middle tarsi 
infuscated; wings pale smoky, the base and margin yellowish. 
Length 9 mm. 
Type locality.—‘‘ Mexico.” 
60466—23—Proc.N.M.vol.62——15 
