96 ENTOMOLOGICAL NEWS. [March, ’08 
cent, Face concaved; foveze and carina indistinct. Proboscis 
short, thick. 
Thorax with the following bristles: 2 pairs post-dorso-cen- 
trals, two post-alar, one supra-alar, two noto-pleurals, one hum- 
eral, no sternopleural, a fine hair in place of the propleural. 
Mesonotum flattened posteriorly ; metanotum slightly oblique 
and convex. Scutellum flat, with four bristles. 
Abdomen 9? ovate; first segment somewhat slender at base. 
Legs stout, but only middle femora thickened basally; all fem- 
ora, especially the posterior pair, with a series of short spines 
beneath towards apex; middle tibiz alone spurred at apex. 
Wings with first vein bare, and approximated to the auxiliary ; 
small cross vein is before the middle of discal cell; third and 
fourth veins parallel; anal cell obtuse. 
This ortalid genus evidently belongs in the subfamily Rich- 
ardiinze somewhere near the genus Hemixantha Lw., from 
which it differs mainly in the basal position of the small cross 
vein. The type is the following species. 
Zeugma palposa sp. nov. (Plate VI, Fig. 1.) 
? Rufous, with bluish-black abdomen. Lateral vertical angles of front, 
and the ocellar region, shining, otherwise front is opaque; one pair of 
fronto-orbital bristles which are above the level of anterior ocellus. 
Frontal orbits towards antennz, orbits of face, cheeks, lower part of 
occiput, and an oblique line across occiput from lower part of posterior 
orbits to neck, silvery. Face more yellowish than front, with a brownish 
spot on each side near the oral margin; clypeus yellowish. Antenne yel- 
lowish-brown; third joint darker at apex, about five or six times as 
long as the second, widest at base and tapering slightly to a rounded 
apex. Palpi distinctly flabellate, yellow at base, whitish at its very broad 
tip, with a brown transverse median band, entirely silvery in certain 
reflections. Lateral turgid portion of the occiput black. Mesonotum sub- 
opaque, blackish in the middle of the anterior margin, with a median 
and lateral whitish pollinose stripe. Pleura polished, black, yellow pol- 
linose near the coxze; metanotum shining, rufous; halteres yellow. Ab- 
domen shining, with short appressed hairs; ovipositor polished, the 
first joint not as wide, but nearly as long, as the two last abdominal seg- 
ments. Legs yellow, with brownish femora bearing black spines; the 
hind femora are somewhat constricted or indented near the bases on 
the inside. Wings hyaline, without spots. Length 7 mm. 
One specimen. Paramaribo, Dutch Guiana (K. Mayo). 
