330 SUPPLEMENT. 



the pleurae greyish ; the usual markings of the mesonotum deep brown, the median stripe geminate, the 

 lateral ones extending acutely nearly to the scutellum. Scutellum with about six bristles on its border. 

 Bristles in front of the halteres hair-like and light yellow. Abdomen rather slender in the male ; opaque 

 yellow, with light yellow hair and bristles ; hypopygium of the male not large, shining black ; second, 

 third, fourth, and fifth segments of the female with a triangular brown spot in the middle of each, the 

 sixth and seventh segments shining black, forming a part of the elongate ovipositor. Legs deep black ; 

 femora with light yellow hair and bristles. Wings hyaline, broadly clouded at the tip and along the 

 hind margin ; the second submarginal cell has its proximal end very nearly opposite that of the second 

 posterior cell. Length 14-16 millim. 



Hab. Mexico, Omilteme and Xucumanatlan in Guerrero 7000 to 8000 feet 

 (H. H. Smith). 



Eight specimens. 



9. Asilus (Meoitamus) capillatus, sp. n. 



d" $ • Similar to A. niyrocaudatus. The colour of the front, face, beard, and lower portion of the mystax 

 yellower. The third joint of the antennae relatively a little longer. The thorax not so light- 

 coloured ; the mesonotal stripes broader and deeper coloured ; the scutellum with a larger number of 

 bristles on its margin ; the bristles in front of the halteres black. The abdomen less slender ; viewed 

 from above deep brown, with a light yellow hind margin to the segments, viewed more obliquely yellowish- 

 sericeous ; the hypopygium of the male larger ; the sixth and seventh segments of the female coloured 

 like the preceding ones. Wings hyaline at the base, strongly clouded distally. All the femora, but 

 especially the front pair, with long and abundant black hair. Length 20-21 millim. 



Hab. Mexico, Omilteme in Guerrero 8000 feet (H. II. Smith). 



Six specimens. There are no bristles on the underside of the front femora. The 

 eighth abdominal segment in the male is scarcely visible above and not very broad 

 below. 



10. Asilus (Machimus?) anonymus, sp. n. 



<$ 2 • Head clothed wholly with black bristles, except the narrow fringe along the oral margin ; beard white. 

 Antennas black ; third joint elongate, twice the length of the arista. Front and face densely yellowish- 

 grey -pollinose ; the moderately prominent gibbosity with abundant black bristles. Mesonotum with 

 light yellow pollen, the markings nearly black ; pleurae grey-pollinose. Scutellum with about six bristles 

 on its margin. Abdomen deep brown, black when seen from behind, the segments with an opaque 

 yellow hind-margin. Ovipositor and hypopygium shining black. Legs deep black ; femora with whitish 

 hair, the hind pair rather slender and elongate. Wings nearly hyaline, with a conspicuous brown cloud 

 distally. Length 12-13 millim. 



Hab. Mexico, Omilteme and Sierra de las Aguas Escondidas in Guerrero 8000 to 

 9500 feet (H. II. Smith). 



Thirty-five specimens. 



11. Asilus (Tolmerus) alterus, sp. n. 



cf 2 • Pace and front densely yellowish-grey-pollinose ; face below the antenna; equal in width to the length 

 of the third antennal joint, rather strongly and abruptly gibbose on the lower half or more. Third joint 

 of the antennae as long as the other two together, the style a little shorter than the third joint. Mystax 

 rather abundant, white, the bristles in the middle above black ; beard white. Thorax red, clothed with 



