TRICHOPHORA. 37 
three genal bristles; antennz black, the basal joints dark rufous; macrochete of the second and third 
abdominal segments only at the hind margin; legs black. 
Length 9-5 millim. 
Face nearly vertical, prominent at the oral margin; cheeks without pile, but with three bristles in a perpen- 
dicular row; vibrisse accompanied by some shorter bristles; beard and pilosity of the ocviput pale yellow; 
behind the posterior orbit of the eyes a row of short black bristles; front broad, laterally blackish ; median 
band reddish-brown ; frontal bristles descending on each side in a curved row as far as the end of the second 
joint of the antennw ; external to these bristles three macrochextsw. Antenne black, the two basal joints 
dark rufous; second joint on the upper part with a long and some shorter bristles; third joint a little 
ionger and broader than the second, rounded at the end; arista rather distinctly jointed, thickened to 
beyond the middle. Thorax and scutellum shining black, but with a cinereous tomentum, which is more 
compact in front of the thorax, and there shows four black stripes, the exterior stripes broader and in the 
form of spots; pleurse with light grey tomentum. Abdomen ovate, shining black; the last segment 
rufous, with cinereous reflections; macrochetz of the second and third segments only at the hind margin. 
Legs black, the front femora outwardly with grey tomentum; the middle joints of the front tarsi subdi- 
lated; bristles as in 7’. rufina, but of a black colour. Tegule whitish. Wings cinereous ; small cross-vein 
placed on the middle of the discal cell; curvature of the fourth vein with a right angle; apical cross-vein 
straight ; posterior cross-vein scarcely curved. 
Hab. Costa Rica, Cache (fogers). 
A single female specimen. 
3. Trichophora nitidifrons, sp. n., ¢ (and ¢ 2). 
Shining black; thorax partly with grey tomentum ; head whitish; front laterally shining black, with a rufous 
median band; one genal bristle; antenn rufous, the third joint more or less blackish; abdomen at the 
sides and at the apex with a rufous tinge ; macrochete of the second and third segments only at the hind 
margin ; wings dark grey, brownish-yellow along the costa. 
Length 9 millim. 
Head in profile nearly quadrate; face and cheeks yellowish-white, almost silvery ; a rather strong bristle on 
the cheeks close to the lower part of the eyes; front as broad as the diameter of the eyes, on both sides 
shining black, but anteriorly of the same silvery-white colour as the face; frontal band rufous, narrowed 
and more obscure towards the vertex; frontal bristles somewhat irregularly descending beneath the root of 
the antenne; vibrisse robust, at some distance above the oral margin, and accompanied by a few shorter 
bristles; occiput metallic black, with yellowish pile, and a row of short black bristles behind the eyes. 
Antenne large, rufous; first joint erect ; second joint double as long as the first, broader towards the end, 
with some short bristles on the upper part; third joint a little longer than the second, very broad and 
subquadrate at the end, on the front side with a black margin (one specimen), almost wholly black (the 
other specimen); arista black, distinctly jointed, thickened to near the end. Proboscis shining black. 
Thorax and scutellum shining black; thorax on the front side with greyish-white tomentum and four . 
black stripes; laterally this tomentum forms a band, which extends to the root of the wings ; pleure and 
voxe cinereous. Abdomen cylindrical, shining black or piceous, black-haired, laterally with a rufous tinge 
and whitish reflecting spots; apical segment dark rufous; macrochete on the hind borders of the second 
and third segments (there are no discal ones). Legs black, elongate, but robust, with rather stout bristles, 
especially those on the outside of the middle tibie; foot-claws and pulvilli slightly elongate, the former 
black, the latter yellow. Tegule whitish. Wings dark grey, along the costa brownish-yellow ; all the 
cross-veins somewhat bordered with brown; small cross-vein on the middle of the discal cell; apical 
cross-vein slightly curved, less oblique than the posterior cross-vein, the latter almost straight; apical cell 
narrowly open at a notable distance from the apex of the wing. 
Hab. Mexico, Medellin near Vera Cruz (H. H. Smith). 
Two male specimens, captured in January 1888. 
