4 SECOND IARKAND MISSION. 



well-defined, transverse curved depression (or indentation); the convexity of the curve is 

 directed forwards, and its ends merge in those of the thoracic indentation, which is also 

 curved (the convexity of the curve directed backwards) and deeply impressed ; these two 

 curved indentations enclose a well-defined, somewhat roundish, smooth, and shining area ; 

 a portion of the surface of the caput on each side, in front of this, is transversely rugulose, 

 and, together with the rest of the thoracic surface, more or less, though not very thickly, 

 covered with minute tubercular granulosities. 



The eyes are of moderate size and disposed in three transverse rows, 2, 2, 4, forming 

 two widely separated groups, each group placed on a tubercular elevation. Those of the 

 first, or foremost, row constitute one group close to the fore margin of the caput ; these 

 appear to be rather the largest of the eight, and are separated from each other by about an 

 eye's diameter ; those of the hinder group (consisting of the second and third rows) form a 

 narrow transverse elongate oval ; the eyes of the second row are also separated by an eye's 

 diameter, and the length of the row is little, if anything, different from that of the first ; 

 the hinder row is curved (the convexity of the curve being directed backwards); the eyes of 

 this row appear to be smaller than the rest, the middle pair being of an irregular form and 

 yellowish- white colour (the colour of the rest is dark), and considerably further from each 

 other than each is from the lateral eye of the same row on its side, and the length of the 

 line formed by those two, hind-central, eyes is a little greater than that of the second 

 (or middle row). 



The legs are tolerahly strong and of moderate length ; their relative length is 4, 1, 2, 3 ; 

 they are of a bright yellow-brown colour, deepening into red- brown on the tibias (and on 

 some other parts) of those of the first and second pairs ; their armature consists of hairs 

 bristles, and spines, but neither of these in any great abundance. The spines are chiefly on 

 the tibise and metatarsi ; those underneath the first and second pairs (particularly the first) 

 are the most conspicuous : the tibiae of the first pair are considerably but gradually enlarged 

 at their fore-extremity on the inner side, the enlargement terminating with a long, strong- 

 curved, blunt-pointed spur or spine. A little on the inner side behind the base of this spur, 

 is a short and strongish denticulation ; the metatarsi of the first pair are rather abruptly 

 bent towards their fore-extremity, and slightly enlarged in a bluntish angular form on the 

 inner side. The tarsi are devoid of any scopula, each ending with three claws ; those of the 

 upper pair are strong and pectinated ; the inferior one is small and inconspicuous. 



The palpi are long, rather strong, similar to the legs in colour, and furnished with hairs 

 and bristles, those beneath the radial joint being the longest and most numerous. This joint is 

 long, more than double the length of the cubital joint, and nearly equals that of the 

 tibise of the first pair of legs ; it is of a rather tumid form, and is bent downwards near its 

 anterior extremity, on the outer side of which there is a strong oblique indentation extending 

 underneath, and margined above with a somewhat tuberculous ridge armed with short, strong, 

 tooth-like spines ; the digital joint is short, expanded laterally at its fore-extremity, which is 

 also somewhat indented, and armed with a few spines ; and the palpal organs are, as usual, 

 simple, though characteristic in detail, consisting of a roundish corneous bulb prolonged into 

 a long, tapering, slightly sinuously-curved, bifid spine, whose extremity, when in its 

 position of rest, is directed outwards and backwards. 



Thefalces are moderately strong and bristly, and have near their extremity, on the inner 

 side, a prominence, armed with strong tooth-like spines : their colour is similar to that of the 

 cephalothorax. 



