278 . DIPTERA. 
consisting of three lines; dorso-central bristles distinct ; scutellum at the base and on the dise black. 
Abdomen ovate ; first segment almost wholly black; the following segments with black reflecting spots, 
arranged in three rows and thus forming a dorsal and two lateral stripes; hypopygium small,.red; hind 
borders of the third and anal segments with a row of macrochete. Legs black, with scattered bristles. 
Tegule yellowish-white. Wings greyish-hyaline; small cross-vein under the end of the first vein and on 
the middle of the diseal cell; third vein with a row of short bristles, ending before the small cross-vein ; 
curvature of the fourth vein rectangular; apical cross-vein incurved in its proximal third, the posterior 
cross-vein distinctly undulate, both oblique and somewhat distant from the hind borders of the wings. 
Hab. Mexico, Chilpancingo 4600 feet and Amula 6000 feet, both in Guerrero 
(H. H. Smith), Northern Yucatan (Gawmer). 
Three male specimens. 
18. Sarcophaga errabunda, sp.n., 3. 
Cinereous ; frontal band, three thoracic stripes, reflecting spots on the abdomen, palpi, and legs black; hypo- 
pygium red; vertex more than half the breadth of the eyes; third vein bristly. 
Long. 6 millim. 
Closely allied to S. uncata, but differing from it in the broader front: in the ¢ (the only sex known of either 
species) it is more than half the breadth of the eyes. The median stripe of the thorax is not divided into 
three lines, though it is drawn out in a point in front, and sometimes on each side traces of lateral lines 
are visible. The abdomen is proportionately longer and more elliptical. The wings often show a 
short costal spine. 
Hab. Mexico, Rincon 2800 feet, Chilpancingo 4600 feet, and Amula 6000 feet, all 
in Guerrero, Teapa in Tabasco (H. H. Smith). 
Seven male specimens. 
19. Sarcophaga pusiola, sp. n., ¢ ¢. 
Cinereous ; frontal band, thoracic stripes, and reflecting spots on the abdomen blackish ; antenna, palpi, and 
legs black, the basal joints of the antenne partly rufous; hypopygium red, its first segment cinereous ; 
front broad ( ¢ ). 
Length 4:5-6°5 millim. 
Front flattened, somewhat prominent, in both sexes broader than the eyes; frontal band blackish, much 
broader than the lateral portions, which are whitish or yellowish-white, with brown reflections, as well as 
the face and cheeks; oral margin slightly rufous ; lower part of the cheeks cinereous, equalling one-half 
of the longitudinal diameter of the eyes. Antenne inserted above the median line of the eyes; basal 
joints, or at least the second joint, rufous ; third joint black, two and one-half times as long as the second ; 
arista plumose onits basal half. Proboscis and palpi black. Thorax, scutellum, and abdomen cinereous ; 
thorax with three blackish stripes, the median stripe prolonged over the scutellum; in the ¢ the median 
stripe has on each side a dark line, which in the ? is absent or scarcely visible; dorso-central bristles 
distinct. Abdomen elliptical (¢) or ovate (2), with blackish-brown reflecting spots; hind borders of 
the third and the ana] segments with erect macrochete; hypopygium of the g red, shining, its first 
segment cinereous, with brown reflections ; anus of the 2 reddish. Legs black, with some scattered 
bristles. Tegule yellowish-grey. Wings greyish-hyaline; third vein with some short bristles; small 
cross-vein under the end of the first vein and on the middle of the discal cell; curvature of the fourth 
vein rectangular ; apical cross-vein slightly incurved ; posterior cross-vein nearly straight. 
Hab. Mexico, Tepetlapa in Guerrero 3000 feet, Mexico city (HZ. H. Smith), Orizaba 
(H. H. Smith and F. D. Godman). 
