ANISIA. 193 
before the middle of the discal cell; apical cross-vein slightly, the posterior cross-vein more distinctly, 
concave. 
Hab. MExico, Sierra de las Aguas Escondidas 7000 feet (H. H. Smith). 
A single female specimen. 
. & 
12. Anisia intrusa, sp. n., ¢. 
Black ; the thorax with a humeral spot on each side and the abdomen with some lateral spots whitish ; 
exterior cross-veins straight. 
Length 2°75 millim. 
Allied to A. egrota, but smaller in size and with a more prevailing black coloration. With the exception of 
the humeral spots, the thorax is wholly black ; the light front borders of the abdominal segments are less 
conspicuous and seem to be reduced to whitish spots at the sides; the macrochete of the abdomen are 
shorter; the black frontal band is less broad; the pilosity on the underside of the femora is nearly 
absent ; the wings are more hyaline; the apical and posterior cross-veins are straight. 
Hab. Mexico, Amula in Guerrero 6000 feet (H. H. Smith). 
A single female specimen. 
13. Anisia signata, sp. n., 2. 
Ochraceous ; frontal band, thoracic stripes, base of the scutellum, hind borders of the abdominal segments, 
third antennal joint, and legs black ; wings brownish. . 
Length 6 millim. 
Front narrower than the eyes, bright ochraceous at the sides; frontal bristles not descending beneath the root 
of the antenne ; face and cheeks white, the cheeks narrow, with a fulvous reflection ; occiput blackish; 
posterior orbits silvery; beard white. Antenne black, the basal joints rufous ; third joint three times as 
long as the second ; arista thickened at the base. Proboscis (at least the terminal lips) rufous; (the palpi 
are retracted in the oral cavity, but they seem to be black), Thoracic dorsum bright ochraceous, with four 
black stripes—the intermediate ones linear, the outer ones in the form of a trigonal spot; behind the 
transverse suture the whole surface is blackish, except on the posterior margin, where it becomes ochra- 
ceous again; pleure grey; scutellum ochraceous, with the base black; metanotum black. Abdomen 
elongate-oval, rufous, and somewhat transparent; first segment at the base and in the middle black; 
second segment with a trigonal black spot on the hind margin, the spot anteriorly extended into a dorsal 
line; third segment with a broad black hind border and a less distinct black dorsal line; anal segment 
black on the posterior half; the front borders of the second and following segments with ochraceous 
reflections ; macrochete long, not only on the disc but on the hind margin of each segment, except on 
the first, where the discal macrochexte are absent. Legs black; the front coxe rufous, silvery-white 
anteriorly ; the posterior coxe and the knees also somewhat rufous; hind tibie posteriorly with two long 
bristles below the middle. Tegule yellow. The brownish coloration of the wings more intense along the 
apical half of the costa; small cross-vein on the middle of the discal cell ; the end of the third vein and 
of the apical cross-vein concave; curvature of the fourth vein rounded ; posterior cross-vein slightly 
curved, nearly in the middle between the small cross-vein and the curvature of the fourth vein. 
Hab. Mexico, Atoyac in Vera Cruz (H. H. Smith). 
A single female specimen. 
14. Anisia nigella, sp.n., ¢ @. 
Shining black; head whitish; abdomen with discal and marginal macrochete ; posterior cross-vein in the 
middle between the small cross-vein and the curvature of the fourth vein. 
Length nearly 4 millim. 
BIOL. CENTR.-AMER., Dipt., Vol. II., August 1890. 2¢ 
