and new species of the genus Lycosa. 283 



thorax J ; breadth f ; breadth of the abdomen y^^ ; length of 

 a posterior leg 1 j ; length of a leg of the third pair If. 



The cephalo-thorax is large, compressed before, rounded on 

 the sides, convex, hairy, with a slight longitudinal indentation 

 in the medial line ; it is of a dark greyish-brown hue, with a 

 broad, yellowish-grey band extending along each side and an- 

 other along the middle, the latter, whose anterior part is the 

 broadest, being somewhat the darker-coloured. The four small 

 anterior eyes form a transverse, slightly curved row, having its 

 convexity directed upwards, and the two intermediate ones are 

 larger than the lateral ones. The falces are powerful, conical, 

 vertical, armed with a strong curved fang at the extremity, and 

 a few teeth on the inner surface : the lip is somewhat quadrate, 

 rather longer than broad, and slightly hollowed at its extremity. 

 These organs are of a brownish-black colour, the apex of the 

 latter having a red-brown hue. The maxillse are straight, and 

 rounded at the extremity, which is enlarged and truncated 

 obliquely at its inner surface ; and the sternum is oval. These 

 parts are of a dark brown hue, the base of the maxillse being 

 the darkest. The legs are long (much longer than those of the 

 female), densely clothed with hairs, and provided with long 

 spines ; the femora, on the upper side, have a yellowish-grey 

 hue, that of the tibiae, metatarsi and tarsi being bright orange- 

 red, and the colour of the under side of all the joints is dark 

 brown tinged with grey ; the fourth pair is the longest, then the 

 first, and the third pair is the shortest; each tarsus is termi- 

 nated by three claws ; the two superior ones are curved and 

 pectinated, and the inferior one, which is very small, is inflected 

 at its base ; the metatarsi and tarsi are provided on the under 

 side with hair-like papillae, constituting a climbing apparatus. 

 The colour of the palpi resembles that of the legs, but is more 

 intense ; the under side is tinged with yellow, and the extremity 

 of the digital joint has a dark brown hue ; the radial is longer 

 than the cubital joint ; the digital joint has an elongated oval 

 form, is convex and hairy externally, compact at its extremity, 

 and has a concavity near its base, on the under side ; this con- 

 cavity comprises the palpal organs, which are moderately deve- 

 loped, rather complex in structure, with a prominent process 

 near. the base, below which there is a fine, pointed, straight 

 spine directed obliquely forward and downward, and are of a 

 reddish-brown colour. The abdomen is oviform, rather broader 

 at the posterior than at the anterior part, convex above, densely 

 clothed with hairs, and of a yellowish-brown colour ; an obscure, 

 fusiform band extends along the middle of the upper part, 

 nearly half its length, and an angular, dark brown mark occurs 

 at its anterior extremity, within the vertex of which there is a 



