184 DIPTERA. 
Three female specimens. 
Owing to the absence of the frontal band and the peculiar position of the frontal 
bristles, this species will probably have eventually to be separated from Telothyria, 
these differences being almost of generic importance. 
34. Telothyria occulta, sp. n., 2. 
Head pale ochraceous ; thorax grey, with four black stripes; abdomen cinereous, with black hind borders to 
the segments ; frontal band, antenn, palpi, and legs black. 
Length 6 millim. 
Front broader than the eyes; frontal band narrower than the ochraceous lateral portions; frontal bristles 
descending to beneath the second antennal joint; cheeks broad; eyes descending to the vibrisse ; beard 
whitish. Antenne distinctly shorter than the face; second joint bristly ; third joint two and a half times 
as long as the second; arista thickened in its proximal half. Proboscis black, its terminal lips with yellow 
hairs; palpi black, thickened towards the tip. Thorax light grey; thoracic dorsum with four distinct 
black stripes, which behind the transverse suture are somewhat united, the outer stripes broader than the 
others ; scutellum black, with a greyish hind border. First abdominal segment black; the following 
segments cinereous, with broad black hind borders, and with marginal macrochete; beneath the anus is 
a black spine, which is turned towards the venter. Middle tibie with a few, the hind tibie with several, 
long bristles ; foot-claws and pulvilli short. Tegule white. Wings greyish-hyaline ; small cross-vein 
before the middle of the discal cell; apical cross-vein straight; posterior cross-vein distinctly curved 
inwards. 
Hab. Mxxico, Amula in Guerrero 6000 feet (H. H. Smith). 
A single female specimen. 
35. Telothyria carinata, sp. n., 2. 
Black; head white; thorax whitish-grey, with black stripes; abdomen carinated on the underside; front 
borders of the segments whitish ; palpi rufous. 
Length 5°5 millim. 
Front broader than the eyes; frontal band black, narrower than the lateral portions ; frontal bristles descending 
as far as the end of the second antennal joint; face and cheeks rather broad. Antenne black ; second 
joint bristly ; third joint four or five times as long as the second ; arista thickened at the base. Proboscis 
black ; palpi pale rufous, thickened towards the tip. Thorax and scutellum covered with a whitish-grey 
tomentum ; thoracic dorsum with four black stripes—the intermediate ones linear, the outer ones less 
conspicuous. Abdomen elongate-oval, the ventral side compressed and carinated ; the first segment and 
the hind borders of the following segments shining black, the front borders of the second and following 
segments whitish, with some traces of a black dorsal stripe ; long macrochete are on the hind margins of 
all the segments. Legs black, bristly; the hind tibie with several long bristles. Tegule whitish. Wings 
greyish-hyaline ; small cross-vein before the middle of the discal cell ; apical cross-vein straight, only a 
little concave at its end; posterior cross-vein more distinctly concave. 
Hab. Mexico, Atoyac in Vera Cruz (H. H. Smith). 
Two female specimens. 
36. Telothyria vicina, sp. n., ¢. 
Yellowish-cinereous ; thorax with four black stripes ; hind borders of the abdominal segments, antenne, and 
legs black ; anus and palpi rufous. 
Length 6 millim. 
Sides of the front and of the face ochraceous ; median and inferior parts of the face and posterior orbits whitish- 
