274 _* DIPTERA. 
10. Sarcophaga ventricosa, sp. n., 3. | 
Cinereous ; frontal band, three stripes on the thorax and abdomen, antenne, palpi, and legs black ; hypopygium 
yellowish-cinereous ; third vein bristly. 
Length 6°5 millim. 
Head pale ochraceous; front flattened, on the vertex half a as broad as the eyes; frontal band blackish, broader 
than the lateral portions ; lower part of the cheeks equalling one-fourth of the longitudinal diameter of 
the eyes. Antenne black, inserted on the median line of the eyes; third joint three times as long as the 
second. Proboscis and palpi black, the palpi slightly thickened towards the end. Thorax and scutellum 
cinereous ; thorax with three black stripes, the median stripe prolonged over the scutellum ; dorso-central 
bristles present. Abdomen elliptical, cinereous or yellowish-cinereous, with three black stripes, interrupted 
by the narrow hind borders of the segments ; hypopygium small, similar in colour to the abdomen ; hind 
borders of the third and anal segments with erect macrochete. Legs black ; tibiee with scattered bristles, 
* without hairs. Tegulee greyish-yellow. Wings greyish-hyaline; third vein with a row of short bristles ; 
staall cross-vein under the end of the first vein and a little beyond the middle of the discal cell; curvature 
of the fourth vein rectangular, the distal portion of this vein (from the posterior cross-vein to the curvature) 
about two-fifths of the penultimate portion ; apical cross-vein concave; posterior cross-vein nearly straight. 
Hab. Mexico, Chilpancingo in Guerrero 4600 feet, Teapa in Tabasco (H. H. Smith). 
Two male specimens. 
11. Sarcophaga diversinervis, sp.n., ¢ 9. (Tab. VII. fig. 7, wing.) 
Cinereous ; frontal band, three thoracic stripes, large reflecting spots on the abdomen, antenne, palpi, and 
legs black ; hypopygium piceous ; third vein bristly ; distal portion of the fourth vein as long as the 
penultimate portion. | 
Length 4-5 millim. 
Head yellowish-white, with brown reflections; front of the ¢ on the vertex half as broad as the eyes, 
enlarged downwards, that of the ? broader than the eyes, with parallel sides; frontal band black, in the 
¢ broader, in the 2 narrower, than the lateral portions ; lower part of the cheeks equalling one-fifth of 
the longitudinal diameter of the eyes. Antenne black, inserted on the median line of the eyes; third 
joint three times as long as the second; arista plumose to near the tip. Proboscis and palpi black, the 
palpi slightly enlarged towards the tip. Thorax, scutellum, and abdomen cinereous; thorax with three 
broad black ( g) or brown (@) stripes; dorso-central bristles distinct; scutellum with a more or less 
extended black spot on the disc. Abdomen: (¢) elliptical, brownish-black with a slight cupreous tinge, 
and with cinereous reflecting spots, chiefly on the front borders of the segments, the hypopygium piceous ; 
(2) ovate, cinereous, the first segment black, the following segments with broad black hind borders and 
blackish reflecting spots ; in both sexes the third and anal segments with marginal macrochete. Legs 
black ; coxw and the underside of the femora grey ; tibiee with scattered bristles, the hind pair without 
hairs; foot-claws and pulvilli elongate in the ¢. Tegulw yellowish. Wings brownish (3) or greyish 
(2); third vein with a row of bristles ; small cross-vein under the end of the first vein and on the 
middle or a little beyond the middle of the discal cell; curvature of the fourth vein rectangular ; posterior 
cross-vein less oblique than the apical cross-vein, on account of which the distal and the penultimate 
portions of the fourth vein (before its curvature) are of equal length ; apical cell somewhat curved upwards 
near its end and opened at a short distance from the tip of the wing (3 ), or issuing in the tip (2); 
cross-vein concave; posterior cross-vein straight. 
Hab. Mexico, Teapa in Tabasco (IZ. H. Smith). 
apical 
One male and one female. This species is at once recognizable by the peculiar 
position of the posterior cross-vein. It seems to be very nearly allied to the following, 
S. fuscianalis, but differs from it in its somewhat inferior size and in having the eyes 
more descending, as well as in the neuration of the wings. 
