282 SUPPLEMENT. 



This species differs from the preceding, A. orbitalis, in having a narrower front in 

 the male, and the face and front clothed with a whitish or yellowish, sometimes 

 brownish, tomentum. The hair of the pleurae is for the most part black ; the anal 

 angle of the wing is more hyaline at the tip, &c. I can distinguish no spinules on the 

 front tibia?. A closely allied insect from Brazil, in my collection, is without the yellow 

 on the sides of the abdomen in front. 



A male from Rincon (II. II. Smith), which I am unable to identify, represents a 

 distinct species which may be confounded with A. curta. It is apparently clothed 

 throughout with black pile and tomentum, save a white tuft on the sides of the 

 first abdominal segment. The deep brown coloration of the wings is not sharply 

 limited in front and fills out most of the fourth posterior cell ; the hyaline portion 

 is whitish. 



26 (c). Anthrax nigrofimbriata, sp. n. 



Black ; abdomen clothed wholly with deep black hair and tomentum, save on the posterior margin of the fifth 

 segment, and the sixth and seventh segments for the most part, where the tomentum is chiefly white. Front 

 rather broad above, clothed with erect black pile and fulvous tomentum ; face with fulvous tomentum ; 

 in profile the face projects in nearly the same line as the front, it being slightly convex and not conical. 

 First two joints of the antennas reddish ; third onion-shaped, with a long slender style, at least three 

 times the length of the bulbous portion. Proboscis projecting more than the length of the face beyond 

 the oral margin. Posterior orbits yellowish-tomentose, the immediate margin of the sides silvery. 

 Mesonotum with fulvous pile in front and a small tuft of fulvous hairs below the humeri ; sides with 

 black hair, as also the pleurae. Wings dark brown antero-proximally, hyaline distally, the brown 

 extending with only slight irregularities from the tip of the first vein to the extreme end of the anal cell. 

 Front tibiae with distinct spinules ; no pulvilli. Length 10 millim. 



Eab. Mexico, Hacienda de la Imagen in Guerrero (H. H. Smith). 

 Two specimens. 



26 (d). Anthrax pleuralis, sp. n. (Tab. V. fig. 5, $ .) 



2 . Face retreating in profile, covered with white pile or tomentum. Proboscis short, with fleshy labella. 

 Bulbous portion of the third antennal joint very short, broader than long, about one-third the length of 

 the styliform portion, which is distinctly attenuated on the distal half. Front narrow above, with black 

 pile; white-tomentose below. Occipital orbits silvery-tomentose. Mesonotum opaque velv«ty-black, with 

 some yellow tomentum ; in front and on the sides with light yellow hair ; below the yellow hair the pleura? 

 are covered with depressed white pile ; a tuft of yellow hair in front of the halteres and another on each side 

 of the base of the abdomen. Abdomen clothed for the greater part, apparently, with black tomentum ; 

 sides of the second, fifth, and sixth segments with white hair. Front tibiae smooth ; front tarsi with erect 

 pubescence. "Wings dark brown and hyaline ; the brown coloration, the limit of which is somewhat 

 evanescent, especially in front, leaves only the extreme tip of the marginal cell hyaline — it extends in the 

 submarginal cell nearly to the furcation of the third vein, crosses the discal cell beyond the middle, and 

 covers a considerable space in the third and fourth posterior cells ; anal cell and anal angle hyaline only 

 at the tip ; a small stump on the anterior furcation of the third vein, and in the third posterior cell from 

 the vein limiting the discal cell. Length 13 millim. 



Hab. Mexico, Venta de Zopilote in Guerrero (//. E. Smith). 



