TELOTHYRIA. 183 
black dorsal stripe; the sides of the first two segments and the anus rufous; several macrochxte at the 
end of the anal segment, also a lateral one (but no dorsal ones) on each of the other segments, and a pair 
on the hind margin of the third segment, these latter being very short and inconspicuous. Tibie with 
short bristles, which on the hind pair outwardly are almost fringe-like ; foot-claws and pulvilli short. 
Tegule yellowish-grey, with a whitish margin. Wings greyish-hyaline ; apical cell rather widely opened 
at a little distance from the wing’s tip; small cross-vein on the middle of the discal cell; apical and 
posterior cross-veins slightly curved, the latter a little beyond the middle between the small cross-vein 
and the curvature of the fourth vein. 
Hab. Mexico, Teapa in Tabasco (H. H. Smith). 
A single female specimen. 
32. Telothyria illucens, sp.n., 3 9. 
Cinereous; thorax with black stripes ; abdomen yellow, with a black dorsal band and more or less black hind 
borders to the segments ; palpi and base of the antenne rufous ; legs black. 
Length 5-6°5 millim. 
Front narrower than the eyes; frontal band black ; frontal bristles short, not descending beneath the root of 
_ the antenne; cheeks narrow ; vibrisse inserted at a little distance above the oral margin; occiput grey. 
Antenne much shorter than the face; the two basal joints and the base of the third joint rufous ; third 
joint (except at the base) blackish, twice as long as the second ; arista microscopically pubescent, thickened 
at the base. Proboscis shining black, rufous towards the tip ; palpi small, filiform. Thorax light-grey (d ) 
or cinereous (@ ), with four black stripes (which are less regular than in T. placida, and often scarcely 
visible) ; scutellum testaceous, sometimes appearing blackish with the hind margin cinereous or rufous. 
Abdomen conical, yellow, somewhat transparent ; hind borders of the segments blackish-brown—on the 
first and second segments this border is rather narrow, on the third much broader, on the anal segment it 
occupies nearly the whole length,—this dark coloration being extended in the middle to a broad dorsal 
band; the third and the anal segments have whitish reflections, especially towards the front margins ; 
macrochsxte rudimentary and scarcely recognizable on the hind margins of the last two segments. Legs 
slender, with weak bristles; foot-claws and pulvilli short in both sexes. Tegule yellowish. Wings 
not longer than the abdomen, yellowish- or greyish-hyaline ; apical cell narrowly opened; small cross- 
vein on the middle or a little beyond the middle of the discal cell; apical and posterior cross-veins very 
slightly curved. 
Hab. Mexico, Teapa in Tabasco (H. H. Smith). 
Three male and two female specimens. 
33. Telothyria argentifrons, sp. n., ?. 
Light grey; front silvery-white, without frontal band; the frontal bristles close to the orbits of the eyes ; 
-antennee and legs black ; palpi rufous. 
Length 4°5 millim. 
Front silvery-white, forming a subquadrate surface, with a black ocellar point, but without any trace of 
the usual frontal band; the frontal bristles inserted quite close to the orbits of the eyes, in a row which 
is prolonged in a curved line as far as the end of the second antennal joint. Face and cheeks yellowish- 
white ; eyes descending to beneath the vibrisse. Third antennal joint three times as long as the second; 
arista thickened to half its length and then suddenly becoming fine and hair-like. Proboscis black, with 
the terminal lips rufous; palpi rufous, small. Thorax and scutellum whitish-grey, with some bluish 
tint ; no thoracic stripes. Abdomen ovate, grey, with irregular blackish reflections, and with marginal 
macrochete. Middle tibie with some long bristles; hind tibiee outwardly with a row of shorter bristles ; 
foot-claws and pulvilli short. Tegule white. Wings greyish-hyaline ; small cross-vein before the middle 
' of the discal cell; apical cross-vein slightly concave; posterior cross-vein straight. 
Hab. Mexico, Amula 6000 feet, Omilteme 8000 feet, both in Guerrero (H. H. Smith). 
