1 876.] REV. O. P. CAMBRIDGE ON EGYPTIAN SPIDERS. 605 



L. K., pretty certain. Adults of both sexes were frequent both in 

 the neighbourhood of Cairo and Alexandria. 



Lycosa injucunda, sp. n. (Plate LX. fig. 15.) 



Adult male, length rather over 3 lines. 



This Spider is very closely allied to L.Jidelis, Cambr., and is 

 found in the same localities ; it may, however, be at once distin- 

 guished by the generally duller and less distinct colours and mark- 

 ings in both sexes, especially in the adult males, whose cephalo- 

 thorax has distinct, though irregularly edged and slightly in- 

 terrupted, lateral yellow bands, leaving a broken marginal brown 

 band on each side ; the central longitudinal yellow band is also quite 

 distinct, strongly radiated at the thoracic junction, and much con- 

 stricted at the occiput, whereas in L.Jidelis the central band is 

 scarcely traceable and the lateral ones quite obsolete. 



The eyes of the hinder row are further apart than in L.Jidelis ; in 

 other respects, except being generally larger, the eyes are very similar 

 in both species. 



The legs are dull yellow, annulated with brown, but not nearly so 

 distinctly as in L.Jidelis. 



The palpi of the adult male differ remarkably in the two species, 

 those of L.Jidelis having the humeral and digital joints black, and 

 the cubital and radial joints clear yellow, the fore part of the latter, 

 as also the base of the digital joints, clothed with white hairs ; the 

 cubital and radial joints are also rather short, and of equal length ; 

 while in the present Spider the humeral joint is dull yellow, like the 

 cubital and radial, these two latter being longer and differing in 

 their relative length, the radial being distinctly longer than the 

 cubital, and (as well as the digital, which is of a dark brown colour, 

 and terminates with two strong curved claws) entirely destitute of 

 the white hairs which in L.Jidelis form so striking a contrast to 

 the black digital joint. The palpal organs of the present species are 

 also of much less complex structure than those of L. Jidelis : no de- 

 scription would avail to make their structure intelligible ; this can 

 only be done by good figures on a large scale ; one character, 

 however, of those of the present Spider is unusual, if not unique — the 

 large basal corneous lobe or process being clothed with hairs. 



The underside of L. Jidelis is much darker than in the present 

 Spider; this is especially noticeable in the sternum, which in the 

 former is deep brownish black, and in the latter pale dull yellowish, 

 with sometimes two longitudinal dusky brownish curved stripes. 



Adult and immature examples of each sex were found both near 

 Cairo and Alexandria. The females of the present Spider may be 

 distinguished from those of L. Jidelis by the much smaller and dif- 

 ferently formed genital aperture. 



Lycosa iniqua, sp. n. 

 Adult female, length nearly 4 lines. 



This Spider bears considerable general resemblance to L. injucundu, 

 hut may be separated at a glance by the large size of the eyes of thp 

 Proc. Zool. Soc— 1876", No. XL. 40 



