48 Miss G. Ricardo on the Asilidee. 
A large blackish species, not unlike Machimus armipes, 
Becker, judging from the description, found in the province 
of Beluchistan, Persia ; but the bristles on fore femora are 
more than two in number and those on the scutellum only 
four or five, not ten as in Becker’s species. In this species 
the typical characteristic of the genus, viz., the production 
of the eighth ventral segment, is not very conspicuous, which 
is apparently also the case in Becker’s species. 
Length, ¢ 20-23, 9 20-26 mm. 
Male.—Face and tubercle covered with pale yellowish 
tomentum ; moustache composed of stout, long, yellowish- 
white bristles, with two black bristles below at each side. 
Palm black, with long black hairs. Beard whitish yellow, 
tlie hairs round the head similar, but becoming bristles half- 
way up. Antenne blackish brown, the first two joints with 
black hairs, the third with a style about the length of the 
joint. Postocular bristles black and very stout. Thorax 
grevish yellow with the usual brown stripes, the median one 
hardly divided anteriorly ; the dorsum of thorax covered with 
small, very short, black bristles, the large bristles all black ; 
the preesutural, supra-alar, and postalar all two in number; 
the dorso-central bristles are about ten, disposed in two 
rows, a few long black hairs are intermixed with them. 
Scutellum with four or five very stout, long, black bristles 
and with fine yellow hairs, Abdomen with the usual large 
black-brown spot on each segment, leaving the segmen- 
tations yellowish grey; the first segment has a tuft of 
yeilowish hairs at each side and two long black bristles 
below; the next four segments with yellowish short bristles 
at the sides, continued on to the dorsum as fine yellowish 
bristly hairs; the eighth ventral segment only slightly 
produced with some long black bristly hairs on its margin 
and a few white ones beyond. Legs black, with appressed 
whitish pubescence; femora all stout, the fore pair with 
three black bristles above and four below, the middle pair 
with about nine in two rows and four at the apex ; the hind 
pair with six below and one or two long white bristles at tie 
base, four above and two near the apex and three at the 
apex; the fore femora with long, fine, yellowish hairs below ; 
the fore tarsi with black ones and with orange-red appressed 
pubescence underneath, which is also present, but paler in 
colour on the hind pair; both the middle and hind pair have 
black hairs below, not so long as those on the fore pair; all 
tibiz ‘and tarsi armed with stout black bristles. Wings clear, 
the shading on fore border and apex not very distinct; tle 
