46 
Psyche 
[March 
tibiae are darker. The distal portion of the posterior tibia is 
brown. Scutellum reddish gold with 2 black marginal 
bristles. Wings nearly hyaline, apex and posterior border 
grayish. Halteres reddish brown. Postscutellum with a me- 
dian dark marking. Abdomen reddish, the sides lighter. 
Genitalia reddish with yellow hairs. 
Female. Similar, but legs more uniform reddish in color. 
Abdomen not coarctate. Pronotum with black bristles. 
Holotype, $ , no. 55 Distrito Federal (?). 
Allotype, $ , no. 156 Colima, Col. 
Deromyia bimaculata n. sp. 
Length 22 mm. A slender reddish species, with three vel- 
vety black lines on mesonotum, the abdomen coarctate, red- 
dish, with two black spots on the 5th tergite, one on each 
side. 
Male. Antennae reddish with black hairs. Face pale yellow 
pollinose. Mystax scanty, white. Palpi reddish with black 
hairs. Occipital bristles black. Beard sparse, pale yellow. 
Pronotum with black bristles. Thorax golden pollinose. 
Mesonotum with three deep black lines, the median line 
reaching the anterior border. Bristles black. Scutellum red- 
dish with 2 black marginal bristles. Coxal hairs pale yellow. 
Legs reddish with black bristles. A black line on the ante- 
rior portion of the side of the hind femur. Wings long and 
wide, pale yellowish, apex and posterior margin grayish. 
Abdomen reddish, coarctate, the 4th segment the widest; 
the fifth with a black spot on each side. Genitalia reddish 
with yellow hair. 
Holotype, $, Cuernavaca. Aug. 11?. 
Andrenosoma igneum n. sp. 
Length, 21 mm. A black species with all black legs, the 
6th and following segments of the abdomen reddish, rest of 
abdomen black with a deep reddish hue in the median area 
of the first 3 segments. 
Male. Proboscis, antennae (3rd segment missing), palpi 
and palpal hairs, antennal hairs, the two ocellar bristles, 
black. Beard, hairs on sides of face and occipital hairs, whit- 
