BRACHYCOMA. 93 
A single male specimen. 
An example from Amula, Guerrero 6000 feet (H. H. Smith), is probably the female 
of the same species. This has the thorax and scutellum unicolorous shining black ; 
the abdomen densely beset with short black pile, and some short macrochete on the 
hind margins as well as on the disc of the segments. 
3. Brachycoma foveata, sp. n., ¢ 9. (Tab. III. figg. 12; 12a, head in 
profile. ) 
Cinereous ; frontal band, four stripes on the thorax, first abdominal segment, two large spots on the second 
and third segments, antennx, and legs black ; palpi and anal segment rufous, 
Length 11 millim. 
Head as broad as the thorax, yellowish-white, with brownish reflections ; cheeks broad and swollen, with a 
deep transverse groove extending from the favial ridges to the lower limit of the eyes ; front somewhat 
prominent, narrowed behind and there scarcely as broad as the eyes, in the female broader; frontal band 
black, the band divided on the vertex; frontal bristles descending on each side in a single row beneath 
the root of the antenne ; the female with some lateral bristles ; the upper portion of the cheeks with some 
weak black hairs ; eyes descending to the vibrisse, in the male with a scarcely perceptible microscopical 
pilosity. Antenne distinctly shorter than the face, the basal joints slightly rufous ; third joint more than 
three times as long as the second ; arista thickened to the proximal half. Proboscis black ; palpi rufous. 
Thorax whitish-grey, with four black stripes, which are prolonged behind the transverse suture; scutellum 
blackish at the base, and with a brown central reflecting spot. Abdomen oblong-ovate, grey; the first 
segment black; on each of the following two segments are two large blackish-brown reflecting spots, 
which do not reach the front borders ; anal segment rufous, with a yellowish-white tomentum on the front 
margin; on the hind margin of the second segment are two macrochetae, on that of the third segment is 
a row of eight longer macrochete ; on the anal segment a double row of similar macrochete. Legs with 
scattered bristles ; foot-claws and pulvilli somewhat elongate in the male, the pulvilli narrow and yellowish. 
Tegule whitish. Wings grey; small cross-vein on or a little before the middle of the discal cell; apical 
cross-vein slightly curved; posterior cross-vein distinctly curved in the male, slightly concave in the 
female. 
Hab. Mexico, Amula in Guerrero 6000 feet, Teapa in Tabasco (7. H. Smith); Costa 
Rica, Cache (fogers). 
A male and three female specimens. 
4. Brachycoma robusta, sp. n.,¢ 2. 
Cinereous ; thoracic stripes, reflecting spots, and a dorsal stripe on the abdomen black; anal segment pale 
rufous ; antenne and palpi rufous; legs piceous or black. 
Length 11 millim. 
Head as broad as the thorax, pale yellow, with greyish reflections; cheeks without transverse groove (this 
being present in the preceding species); front a little prominent, narrowed behind and there narrower 
than the eyes; frontal band blackish-grey, as broad as the pale yellow lateral portions; frontal bristles 
descending on each side in a single row as far as the end of the second antennal joint; eyes reaching 
to beneath the vibrisse. Antenne rufous, much shorter than the face; second joint with some black 
bristles ; third joint brownish, narrow, more than twice as long as the second. Thorax light cinereous, 
with four black stripes, which are two and two united towards the hind margin; scutellum with a 
brownish reflecting spot. Abdomen conical, cinereous, with blackish reflections and a black dorsal stripe, 
the stripe prolonged over the rufous anal segment; some very short and weak macrochete are on the 
hind margins of the last three segments. Legs apparently black ; but in the male the coxe, the base of 
the femora, and the posterior tibiz are somewhat rufo-piceous; front tibise anteriorly with a row of short 
