594 REV. O. P. CAMBRIDGE ON EGYPTIAN SPIDERS. [June 20, 



examples as bleached or washed-out specimens of the Palestine 

 species. I can, however, see no difference between them in any 

 structural points. 



Philodromus medius. 



Philodromus medius, Cambr. Spid. of Palest. & Syria, P. Z. S. 

 1872, p. 311. 



An adult male, with females, both adult and immature, were 

 found in Upper Egypt, upon the lower boughs of the sont acacia. 



Philodromus cinereus, sp. n. 



Adult female, length 2 lines. 



The cephalothoraiV is pale yellow, the sides (except a narrow 

 marginal white line) yellowish brown, divided longitudinally by a 

 broken curved line of three indistinct whitish elongate spots, and 

 marked along the course of the normal indentations with converging 

 black lines, among which are a few other small spots of the same 

 colour ; the upper part of the caput is dull yellowish brown, margined 

 strongly behind with white, on the posterior edge of which are two 

 or three deep-black-brown spots ; the clypeus is white, and its 

 height is equal to half that of the facial space ; the ocular area is 

 also white. 



The eyes are in the usual position, but are rather more unequal in 

 size than usual, those of the fore central pair being decidedly the 

 largest and considerably further from each other than each is from 

 the fore lateral eye on its side, the interval between each and the 

 latter being rather less than the latter's diameter ; the four central 

 eyes form a square whose hinder side is longer than the rest. 



The legs are rather long and slender, their relative length is 

 2, 4, 3, 1 ; they are pale yellow in colour, annulated and speckled 

 more or less with blackish brown, and furnished sparingly with hairs 

 and a few very fane inconspicuous spines. 



The palpi are moderately long, slender, and similar to the legs in 

 colour. 



The falces are of moderate length, but slender, and of a brownish- 

 yellow colour. 



The maxillce and labium are normal in form, and similar to the 

 falces in colour, but tipped with a paler hue. 

 The sternum is yellow, marbled with white. 



The abdomen is rather large, broader behind than before ; it is of 

 an ashy grey colour, thickly suffused with darker grey and black 

 specks on the upperside ; the normal marking along the centre of 

 the fore half is of a blackish grey colour, well defined by a black 

 marginal line, truncate at its hinder extremity, and emitting an indis- 

 tinct hlack oblique line from either side of its brcadest part, which 

 is slightly angular ; the hinder part is marked by some obscure 

 whitish markings and spots disposed in opposed oblique broken lines 

 on either side ; the genital aperture is characteristic, and of a some- 

 what oval or kidney-shape, divided by a narrow longitudinal septum ; 

 a little way underneath, in front of the spinners, is a small but very 



