SARCOPHAGA. 271 
4. Sarcophaga acanthoptera, sp. n., ¢ 2. (Tab. VII. fig. 5, wing.) 
Cinereous ; frontal band, three thoracic stripes, large reflecting spots on the abdomen, antenna, palpi, and legs 
black ; hind border of the anal segment and hypopygium red; wings with a costal spine; first and third 
veins with short bristles; apical cell narrowly opened. 
Length 5-6°5 millim. 
Head whitish, somewhat silvery ; front a little narrower than the eyes ('), at least as broad as the eyes ( ¢ ); 
frontal band black, narrower than the lateral portions ; lower part of the cheeks equalling one-fourth of 
the longitudinal diameter of the eyes. Antenne black, inserted above the median line of the eyes; third 
joint three times as long as the second. Proboscis and palpi black. Thorax and scutellum cinereous: 
the thorax with three black stripes of equal breadth; dorso-central bristles distinct. Abdomen: (¢) 
elliptical, the first three segments black, with greyish reflecting spots, chiefly at the front borders, the 
anal segment anteriorly with grey and blackish spots, posteriorly red, and the hypopygium red; ( @ ) 
elongate oval, cinereous, with brown reflecting spots, the anus obscure reddish, and the third and anal 
segments with erect macrochets at the hind borders (in the single male specimen the macrochetex are 
broken off). Legs black ; front femora outwardly greyish; tibie not hairy in the ¢. Tegule whitish. 
Wings greyish-hyaline ; costa at the base to beyond the humeral cross-vein with bristles and with a 
distinct costal spine; first and third veins with a row of bristles ; small cross-vein under the end of the 
first vein and on the middle of the discal cell; apical cell, at least in the ¢, very narrowly opened ; 
apical cross-vein concave ; posterior cross-vein straight. 
Hab. Mexico, Amula in Guerrero 6000 feet, Atoyac in Vera Cruz, Teapa in Tabasco 
(H. H, Smith). 
One male and three female specimens. 
5. Sarcophaga xanthopyga, sp.n., ¢ ¢. 
Yellowish-cinereous ; three thoracic stripes, reflecting spots in three rows on the abdomen, antenna, palpi, 
and legs black; lower part of the cheeks equalling one-third of the longitudinal diameter of the eyes; 
hypopygium ochraceous ; first and third veins bristly. 
Length 6 millim. . 
Front flattened, slightly prominent, on the vertex narrower (¢) or broader (2) than the eyes, enlarged 
downwards ; frontal band blackish-brown, broader than the lateral portions, these, as well as the cheeks, 
yellowish or ochraceous, with brown reflections; inferior part of the cheeks equalling one-third of the 
longitudinal diameter of the eyes. Antenne black, inserted a little above the median line of the eyes ; 
the basal joints, or at least the second joint, often rufous; arista strongly plumose for two-thirds of its 
length. Proboscis and palpi black. Thorax and scutellum cinereous ; the thorax with distinct dorso-central 
bristles and with three black stripes, the median stripe prolonged over the scutellum, and with traces of a 
dark line on each side. Abdomen elliptical (¢), ovate (2), yellowish-cinereous, with black reflecting 
spots, which are arranged in three rows ; hind border of the third segment with two macrochete in the 
g, and with a row of small depressed bristles in the @ ; hind border of the anal segment with a row of 
macrochete in both sexes; hypopygium (<¢) small, reddish-ochraceous; the anus in the 9 also 
reddish. Legs black, the middle and hind tibie piceous or even somewhat reddish, not hairy, but with 
some scattered bristles. Tegule whitish. Wings greyish-hyaline ; first vein bristly on the basal half; 
third vein bristly to near the small cross-vein ; the cross-vein under the end of the first vein and on the 
middle ofthe discal cell; apical cross-vein incurved at one-third of its length ; posterior cross-vein very 
slightly undulate, sometimes nearly straight. 
Hab. Mexico, Amula 6000 feet and La Venta 300 feet, both in Guerrero, Cuernavaca 
in Morelos (H. H. Smith), Orizaba (FP. D. Godman and H. H. Smith). 
Several specimens of both sexes. 
The male of this species agrees with the corresponding sex of JS. rufitibia in the 
