SAUNDERSIA. 21 
3. Saundersia macula, (Tab. I. fig. 16.) 
Micropalpus macula, Macq. Dipt. Exot. ii. 3, p. 46, t. 5. £. 2°. 
Saundersia macula, Schin. Reise d. Novara, Zool. iii., Dipt. p. 834. 180. 
Hab. Costa Rica, Rio Sucio (Rogers).—Sours America ! 2. 
A single pair, from which I give a fresh description :— 
Face and cheeks ochraceous; face vertical, a little prominent at the oral margin; front cinereous, slightly 
narrowed behind, in the female broader; median band narrow, brownish-red ; frontal bristles rather 
stout, on both sides descending in a single row beneath the root of the antenne; cheeks with a weak 
yellow pile; above and beneath the vibrissee are some shorter bristles; beard pale yellow. The two 
basal joints of the antenne rufous, the second with a long and several shorter bristles; third joint black, 
in the male a little longer than in the female, nearly twice as long as the second, ovate, and broader than 
the latter; arista rather distinctly jointed, thickened to beyond the middle, microscopically pubescent. 
Proboscis shining black, longer than the head. Thorax with yellowish-cinereous tomentum, four longi- 
tudinal black lines (interrupted on the transverse suture), black pile, and long macrochete. Scutellum 
black, with long erect spines. Abdomen convex, black; on the front margin of the fourth segment is a 
large golden-yellow, well-delineated spot, which in the middle at its hind border extends into a point ; 
with the exception of this spot, the whole upper surface is densely beset with spines; the first segments 
have, moreover, laterally a black pilosity ; venter with bristly hairs. Legs fulvous; the upper and under- 
sides of the front femora and the underside of the hind femora with bristly hairs ; tibie outwardly beset 
with. bristles, those of the middle pair longer and stouter; foot-claws and pulviili yellow, in the male 
elongated and surrounded by long black hairs, the claws with black tips; front tarsi in the female a little 
dilated. Tegule fulvous; a similar coloration at the base and along the basal half of the costa of the wings, 
which for the rest are greyish-brown ; small cross-vein placed before the middle of the discal cell; apical 
cross-vein incurved at its base; apical cell rather broadly opened ; posterior cross-vein subconvex, placed 
on nearly three-quarters of the apical cell. Length 9-5 millim. 
4. Saundersia albomaculata. (Tab. I. fig. 17.) 
Micropalpus albomaculatus, Jaenn. Neue exot. Dipt. p. 80. 105° 
Hab. Muxtco!, Ciudad in Durango 8100 feet (Forrer); Guatemata, Quezaltenango 
7800 feet (Champion). 
Head pale ochraceous, in some specimens almost golden-yellow; face a little retreating, on the lower part 
suddenly, almost conically, projecting; above and beneath the vibrissee some shorter bristles ; beard 
and pilosity of the cheeks pale yellow; front a little narrowed behind, laterally with cinereous tomentum, 
in the middle with a ferruginous band; frontal bristles in the male descending on both sides in a 
double row to a little beneath the root of the antenne; in the female these bristles stouter but less 
abundant, and forming a single row, the outer ones being represented by two bristles only. Antenne 
rather large, the two basal joints dark ferruginous; third joint black, as long as but broader than the 
second and rounded at the tip; arista bare, rather distinctly jointed, gradually tapering beyond the 
middle. Proboscis shining black, longer than the head. Thorax with cinereous tomentum, and four 
longitudinal black stripes ; pilosity and bristles black. Scutellum reddish-brown, with many erect spines ; 
the hind margin with two long macrochsxte, which are directed backward. Abdomen convex, black, with 
some blue or violet reflections ; at the front margin of the fourth segment is a large white spot, which is 
extended laterally in a border and in the middle behind into a blunt point; with the exception of this spot 
the whole upper surface is densely beset with black spines, which also exist on the middle portion of the 
venter; the incisions on the venter more or less whitish. Legs testaceous or fulvous; front and middle 
cox with short bristles, the hind coxe with a pair of spine-like bristles ; underside “of the femora and 
the outside of the tibiee with many bristles, those of the middle tibie the longest ; foot-claws and pulvilli 
yellow, as usual in the male longer and surrounded by long hairs, the claws with black tips. Tegule 
