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



dark yellow-brown, pale at the apex. The sternum is yellow, divided 

 longitudinally by a well-defined and very distinct nearly black 

 stripe. 



The abdomen is of an elongate oval form, and clothed with dull 

 yellowish hairs ; the normal maculae on the fore part, as well as the 

 ordinary angular bars, or chevrons, on tbe binder part (which last are 

 spotted with small black points), are well defined, and vary in colour 

 from yellow to reddish yellow-brown ; besides which there are 

 various lines and spots of yellowish and white, the ground-colour 

 being nearly black, and the whole forming an exceedingly pretty and 

 variegated pattern ; the sides are yellowish, marked with short 

 blackish spots and streaks ; and the underside is also yellow, marked 

 with three broken blackish lines. 



An immature male and two adult females were found near Alex- 

 andria. It may be distinguished from all other European and 

 Egyptian Spiders known to me by the yellow sternum bisected by a 

 longitudinal black stripe. 



Trochosa depuncta, sp. n. 



Adult male, length 3^ lines. 



This spider is very closely allied to T. picta, Hahn, but may be di- 

 stinguished by its less distinct pattern and paler colours ; the structure 

 also of the palpal organs is different. The whole of the underside also, 

 except the sternum, is of a pale yellow colour without any markings, 

 the sternum being blackish brown, with a yellow longitudinal line 

 dividing the fore half; while the underside of T. picta is invariably 

 (in my experience) of a sooty black hue, and the annulation of the 

 legs very strong and distinct. Possibly this Spider may be the 

 Lycosa nilolica of Savigny ; but as there appears to be considerable 

 doubt upon the point, I have thought it best to give it here as a distinct 

 species. 



An adult male and two females were found near Alexandria. 



Trochosa pilipes. 



Lycosa pilipes, Luc. Expl. en Algerie, p. 109, pi. ii. fig. 8. 



Numerous examples of both sexes of this Spider were found under 

 stones on the damp sandy flats bordering the Nile in Upper Egypt ; 

 and I believe them to be identical with the Spider described and 

 figured by H. Lucas (he. cit.). It is very closely allied to examples 

 of Trochosa lynx, Koch, received from Dr. L. Koch, but is, I think, 

 decidedly of a different species. The numerous long erect bristles 

 and hairs on the legs (and, in fact, on the whole Spider) are very cha- 

 racteristic. 



Trochosa virulenta, sp. n. 



Adult male, length G lines ; adult female, 7 lines. 



This Spider is nearly allied both to T. pilipes, Luc, and T. lynx, 

 Koch, but may be distinguished by its larger size and bolder though 

 very similar pattern on the abdomen. The palpi also of the male 

 differ very perceptibly in their greater strength, their shorter cubital 



