36 Mr»3ii Blackwall on new species of 



part, which is rather nearer the anterior than the posterior extre- 

 mity, by a curved hne of the same hue, having its convexity 

 directed fonvards, and on each side of the posterior part is a 

 curved yellowish brown line, which extends to the spinners ; all 

 the yellowish brown mai'ks are rather obscure, and are faintly 

 bordered with black. Spinners brown. Sexual organs dark 

 brown, with a large orifice. Plates of the spiracles dull yello?nf| 



9. Salticus fuUgineus. f 



LdngtK*of the female J-th of an inch; length of the cephalo^ 

 thorax -^^ ; breadth j\ ; breadth of the abdomen y\ > length 

 of a posterior leg -f^ ; length of a leg of the second pair ^. it 

 ' Fourth pair of legs the longest, then the first, second pair.<fi 

 little shorter than the third ; the femora and tibise of the anterior 

 pair are very robust, brownish black, and are densely fringed 

 with long black hairs on the under side, those on the tibiae being 

 the longest ; their metatarsi and tarsi are red-brown ; the se- 

 cond, third, and fourth pairs of legs are dark brown with reddish 

 brown bands, the femora being the darkest ; below the claws is 

 a small scopula. The palpi are short and resemble the legs in 

 colour. Cephalo-thorax somew^hat quadrilateral, sloping abruptly 

 at the posterior part, and projecting a little iDeyond the man- 

 dibles in front; its colour is brown-black, with some whitish 

 hairs about the region of the eyes and on the posterior slope, 

 and nan'ow white lateral margins. Mandibles short, strong, 

 vertical, dark brown tinged with red, and having some whitish 

 hairs in front, near the base. Maxillae straight, enlarged and 

 rounded at the extremity : lip oval : these parts are dark brown 

 with pale reddish brown extremities. Sternum oval, very dark 

 brown. Abdomen oviform, projecting over the base of the ce- 

 phalo-thorax ; it is of a brown-black colour, the upper part being- 

 interspersed with light-coloured iridescent hairs, and encompassed 

 by a zone of whitish hairs ; two large depressions, placed trans- 

 versely, occur near the middle of the upper part. Plates of the 

 spiracles dark brown. 



The male is smaller and darker- coloured than the female, and 

 the relative length of its legs is different, the first pair being the 

 longest, then the fourth, and the second pair the shortest. Palpi 

 dark reddish brown ; the cubital and radial joints are very short, 

 the latter, which is the shorter, projecting a small pointed apo- 

 physis from its extremity, on the outer side ; the digital joint is 

 oval, convex and hairy externally, concave within, comprising the 

 palpal organs, which are highly devoloped, not complicated in 

 structure, gibbous and prominent at the base, which extends 

 upwards to the articulation of the cubital and radial joints ; their 

 colour is red-brown. 



