18 
SECOND YARKAND MISSION. 
maxillae, and labium being, however, darker than the rest ; the falces, indeed, are dark 
red-brown. 
The cephalothorax is oval, truncated both before and behind, and slightly constric e 
on the margins at the fore part of the caput. The normal grooves and indentations are 
distinct, but not very strongly marked ; the hinder slope is rather abrupt, but convex y 
rounded, and the profile line of the upper part is as nearly as possible level, the fore p ar 
of the caput (including the ocular area) rounding, and sloping a little forwards. The surface 
is clothed with greyish pubescence, mixed with more erect and darkish hairs and bristles. 
The lateral margins are bounded by a black-brown line. 
The eyes are in the ordinary position, forming two transverse curved lines ; the convexity 
of the curve of the hinder row is directed forwards. This row is the longest and much t ie 
most strongly curved, the foremost row being, in fact, almost straight, its convexity ben 
rather directed backwards ; thus the interval between the eyes of each lateral pair is considei* 
ably greater than that between the fore and hind-central pairs. They are seated on blackis i 
tubercles ; those of the hind-central pair are oval, oblique, divided by an interval equal to ie 
length of their longest diameter, and, with the fore-central pair, from a square whose f° ie 
side is very slightly the shortest ; each of the hind-central eyes is separated from the hint 
lateral next to it by more than twice its longest diameter ; the fore-laterals are the largest o 
the eight, and each is separated from the fore-central next to it by less than the diameter o. 
the latter ; the interval between the fore-centrals being rather greater than this diameter , 
the height of the clypeus is about equal to the space, taken in a longitudinal line, between 16 
fore and hind-central pairs. 
The legs are strong and moderately long ; their relative length being 4, 1, 2, 3. They 
are pretty thickly furnished with hairs, bristles, and spines ; the last are the longest, 
are most numerous on those of the third and fourth pairs ; there are, however, several spiu es 
on the under sides of the tibiae and metatarsi of the first and second pairs also ; beneath the 
two terminal claws is a small claw-tuft, and there is a thin scopula beneath the tarsi and a 
portion of the metatarsi of the first and second pahs. 
JPalpi rather short and slender; the radial joint is rather longer than the cubital, an 
the digital joint is longer than the radial, and slightly suffused with reddish brown. They 
are furnished with hairs, bristles, and a few slender spines, and terminate with a sing e 
curved claw. . 
The fa Ices are strong, moderate in length, rather prominent near the base in front, an 
furnished with long prominent bristles and hairs. 
The maxillae are curved, and considerably inclined to the labium ; and are enlarged iu 
rather semi-circular form at the outer side, so as to be very broad across the middle, where 
they are also strongly impressed. 
The labium is of an oval form, truncated at its base, and rounded at the apex. 
The sternum is oval, pointed behind, and depressed between the insertions of the legs- 
The abdomen is oblong-oval, truncated before, rounded behind, and not very eon 
above, but projecting a little over the base of the cephalothorax; it is of a deep mouse- 1 ^ 
colour with three or four transverse bars of different lengths, and tending to run one 
the other, formed by silky-grey pubescence on the fore-half of the upper side; these 
succeeded by several transverse, blackish, but inconspicuous, angular lines or chevrons ton 
the spinners. A silky-grey pubescence appears to be also more or less dispersed on the n 
part ; and the whole upper side is more or less speckled with black points, some of w i > 
