Mr. J. Blackwall on new species of Lycosa. 285 



and the sternum is oval and glossy, with small prominences on 

 the sides, opposite to the legs. These parts are of a brownish- 

 black hue, the sternum and the extremities of the maxillae and lip 

 having a tinge of red. The abdomen is oviform, rather broader 

 at the posterior than at the anterior part, convex above, densely 

 clothed with short hairs, and of a brown-grey colour, the sides 

 and under part, which are rather paler, being obscurely spotted 

 with brown j at the anterior extremity of the upper part there is 

 a large, angular, brown mark, and within the angle a yellowish- 

 white triangular spot, trifid at its base, and having its vertex 

 directed forwards ; to this spot succeeds a fusiform, brown band, 

 whose margins are the darkest ; it extends nearly to the middle 

 of the upper part, is bifid at its extremity, and has a small an- 

 gular point on each side, near the middle, immediately above 

 which there is a minute, red-brown depression encircled with 

 yellowish-white hairs ; a similar but somewhat smaller depression 

 occurs on each side of the posterior extremity of the band, and 

 these latter depressions are wider apart than the former ; a series 

 of minute, obscure, yellowish-white spots, commencing nearly 

 opposite to the small angular point on each side of the fusiform 

 band, extends to the spinners, which have a dark reddish-brown 

 hue ; the sexual organs have a longitudinal septum in the middle 

 and are of a red-brown colour, that of the branchial opercula 

 being yellowish-brown. 



Two adult females of this fine spider, the largest species of 

 the genus to which it belongs, were discovered under a stone in 

 one of the Deeertas, — rocky, uninhabited islands near Madeira. 

 They were sent to me for inspection in August 1857, by James 

 Yate Johnson, Esq., to whom I am obliged for permission to 

 describe this and the preceding Lycos<B. 



Lycosa herbigrada. 



Length of the female y%ths of an inch ; length of the cephalo- 

 thorax ^ ; breadth ^2 j breadth of the abdomen j^^ ; length of 

 a posterior leg ^ ; length of a leg of the third pair ^. 



The four small anterior eyes are arranged in a transverse row 

 in front of the cephalo-thorax, the two intermediate ones being 

 rather the smallest. The cephalo-thorax is compressed before, 

 depressed and rounded on the sides, and has a slight longitudinal 

 indentation in the medial line ; it is of a red-brown colour, the 

 space comprising the eyes, a broad, irregular band extending 

 along each side, and a narrow line on each lateral margin having 

 a brown-black hue; the red-brown spaces are covered with 

 greyish hairs, and the medial one is abruptly contracted near 

 its anterior extremity. The falces are powerful, conical, and 



