SARCOPHAGA. 285 
short bristles at the base of the third vein ; small cross-vein a little beyond the middle of the mediastinal 
cell and exactly on the middle of the discal cell; curvature of the fourth vein with a somewhat acute 
angle; apical cross-vein incurved at its base; posterior cross-vein slightly undulate. 
Hab. Mexico, Chilpancingo 4600 feet and Acapulco, both in Guerrero, Atoyac in 
Vera Cruz (H: H. Smith), Northern Yucatan (Gaumer). 
Four males and one female. 
31. Sarcophaga volucris, sp. n., ¢. 
Cinereous ; head yellowish ; frontal band, three thoracic stripes, reflecting spots on the abdomen, antenna, 
palpi, and legs black ; no dorso-central bristles ;-middle and hind tibie clothed with short hairs on the 
inner side ; hypopygium red. 
Length 9-11 millim. 
Very closely allied to S. pewata, and agreeing with it in almost all characters. The head, however, is of a 
paler yellow colour ; the front on the vertex is a little broader, and the legs are more slender, with their 
pilosity less distinct, the hairs on the inner side of the middle and hind tibie being much shorter and 
only present on the apical half. 
Hab. Mexico, Amula in Guerrero, Teapa in Tabasco (H. H. Smith). 
Two male specimens. 
32. Sarcophaga ochripyga, sp. n., ¢ ¢. 
Cinereous ; head and anal segment ochraceous; frontal band, three thoracic stripes, reflecting spots on the 
abdomen, antenna, palpi, and legs black; no dorso-central bristles; legs without hairs; hypopygium 
red. 
Length 7°5-8°5 millim. 
Front not prominent ; vertex of the ¢ less than half as broad as the eyes, that of the ? as broad as the eyes ; 
frontal band black, as broad as the lateral portions, which are ochraceous, as well as the face and cheeks; 
face perpendicular ; oral margin not prominent; inferior part of the cheeks equalling one-fourth (3) or 
one-third (9) of the longitudinal diameter of the eyes; above the vibrisse are some shorter bristles ; 
occiput dark grey. Antenne black, inserted above the median line of the eyes; third joint four times as 
long as the second; arista plumose to beyond the middle. Proboscis and palpi black. Thorax and 
scutellum cinereous; the thorax with three black stripes, the median stripe prolonged over the scutellum ; 
dorso-central bristles are absent or totally concealed in the dense pilosity ; macrocheetze are only visible at 
the sides and on the hind border ; in the 9 the lateral borders of the thorax are yellowish, the pleure 
grey. Abdomen not longer than the thorax, elliptical (J) or broadly ovate (Q); the first three segments 
yellowish-cinereous, with blackish reflecting spots, the anal segment ochraceous, with brown reflections ; 
hind border of the third segment with two dorsal and on each side two lateral macrochete; hind border 
of the anal segment with several macrochete ; hypopygium of the ¢ yellowish-red, with some black 
bristles. Legs black ; tibia without hairs, with some bristles only ; foot-claws and pulvilli elongate in 
the g, the pulvilli brown. Tegule yellowish-white. Wings greyish-hyaline ; small cross-vein beyond 
the middle of the mediastinal and on the middle of the discal cell; curvature of the fourth vein rectan- 
gular ; apical cross-vein incurved at the base; posterior cross-vein slightly undulate, 
Hab. Mexico, Dos Arroyos 1000 feet, Tepetlapa 3000 feet, and Amula 6000 feet, 
all in Guerrero, Frontera in Tabasco (H. H. Smith), Northern Yucatan (Gauwmer). 
Two male and four female specimens. 
