380 REV. O. P. CAMBRIDGE ON NEW DRASSIDES. [Julie 2, 



nearly two of their diameters, and considerably larger than that 

 which separates each from the hind lateral on its side. The eyes 

 of each lateral pair are separated from each other by nearly the 

 diameter of one of them, there being but little difference in their size. 

 The eyes of the fore central pair are (apparently) but little larger 

 than the hind centrals ; the interval between them is less than two 

 diameters, and that between each and the fore lateral on its side is 

 equal to about the diameter of the former. 



The legs are rather long and moderately strong ; their relative 

 length is 4, 1, 2, 3; they are of a deep brown colour, getting 

 paler towards the extremities, the tarsi being pale yellowish. 



The palpi are not very long nor strong, but similar in colour 

 to the legs ; the cubital and radial joints are equal in length ; the 

 latter has its outer extremity produced into a strongish, tapering, 

 bluntish-pointed apophysis, rather less in length than the joint itself ; 

 the digital joint is of ordinary form, rather large, and its length 

 exceeds that of the radial and cubital joints together. The palpal 

 organs are simple and have a short, strong, curved, bluntish-pointed, 

 corneous process or spine near their extremity. 



The f alces are long, strong, projecting, and considerably arched 

 or prominent near their base in front ; they are similar to the 

 cephalothorax in colour, and their fore sides are covered with black 

 granulations or small tubercles ; from some of these issue strong 

 bristly hairs ; and probably from the rest similar bristles had been 

 rubbed off. 



The maxilla are of normal form. The palpi issue from above the 

 middle point towards their extremity ; they are of a deep yellow- 

 brown colour, paler at the extremities. 



The labium is of normal form, and similar to the cephalothorax 

 in colour. 



The sternum has numerous prominent bristly hairs rouud its mar- 

 gin ; and its general surface appeared to be covered with minute 

 punctures ; its colour is similar to that of the maxillse. 



The abdomen is of an oblong-oval form, and projects over the base 

 of the cephalothorax ; it is black, clothed with hairs, and has a deep- 

 brown coriaceous patch at its fore extremity on the upperside. The 

 spinners are blackish and of ordinary size ; those of the inferior pair 

 are double the length of the superior pair, but about equal in 

 strength. 



A single adult male was found at Alexandria, under a stone, by 

 myself in April 1864. 



Prosthesima nilicola, sp. n. (Plate LI. fig. 8.) 



Adult male, length 1| line. 



This small but very distinct species is of ordinary general form 

 and structure. 



The cephalothorax is glossy, and of a rich deep brown colour, 

 narrowly margined with black ; the ordinary grooves and indenta- 

 tions are barely visible, and the lateral constriction at the caput is 

 very slight. 



