MB. J. BLACKWALL ON SOME TUSCAN SPIBEES. 423 



■12 ; breadth of the abdomen -g ; length of an anterioi- leg I ; length 

 of a leg of the third pair ^\. 

 The legs are very unequal in length ; the first pair is much the longest, 

 then the fourth, and the third pair is the shortest ; they are provided 

 with hairs, and have a pale brownish-yellow hue j the inferior surface 

 of the femora of the anterior ])air has a dark-brown colour, and a line 

 of the same hue extends along its upper part and that of the genua 

 and tibia;; each metatarsus of the posterior pair has a calamistrura 

 situated in a curve at its superior surface, from which a dark-brown 

 line passes to the end of the joint. The eyes are small, not very un- 

 equal in size, and disposed on the anterior part of the cephalothorax 

 in two transverse, curved rows, whose convexity is directed forwards ; 

 the anterior row, which is the less curved, is situated near the frontal 

 margin, and the intermediate eyes, which are seated on a tubercle, are 

 rather the largest, and the lateral ones the smallest of the eight; the 

 lateral eyes of both rows are widely apart, and are placed on minute 

 tubercles, and the intermediate ones describe a trapezoid whose ante- 

 rior side is the shortest. The cephalothorax is long, compressed be- 

 fore, greatly rounded on the sides, glossy, convex, but somewhat de- 

 |)rcsscd near the middle, and marked with furrows on the sides, which 

 converge towards a broad indentation in the medial line ; it is thinly 

 clothed with whitish hairs, and of a dull brownish-yellow colour, with 

 a brown band extending from each intermediate eye of the posterior 

 row nearly to its base, and a very obscure band of the same hue on 

 each side, above the lateral margin. The falees are strong, conical, 

 aiul somewhat ])romincnt ; the paljji are short ; and the maxilla; arc 

 straight, powerful, and greatly enlarged at the rounded extremity, 

 which is rather prominent on the inner surface. These organs are of 

 a pale yellow-brown colour, the ))alpi being much the jjalcst. The lip 

 is triangular ; and the sternum has an oblong oval form, with well- 

 marked prominences on the sides, opposite to the legs. These parts 

 are of a dark-brown hue, the apex of the lip having a yellowish-brown 

 tint. The abdomen is of an oblong-oviform figure, somewhat convex 

 above, and projects a little over the base of the cephalothorax ; it is 

 of a cream-colour, the under part being thickly freckled with brown, 

 and a short, dark-brown, slightly ramified band, whose anterior part 

 is the broadest, is situated in the medial line of the upper part, near 

 its anterior extremity ; the sexual organs are highly developed, and 

 of a dark-brown colour, a strong process, directed obliquely down- 

 wards and backwards from their anterior margin, having its bifid ex- 

 tremity of a pale brownish-yellow hue ; the eight s])inncrs are of a 

 yellowish-brown colour, those of the inferior ])air, which arc the short- 

 est, and consist of a single joint each, being united throughout their 

 entire length. 



