610 3fr. Blackwall's Descriptions nj new Species of Spiders. 



quadrate, ratlier broader at the base than at the extremity; it is dark 

 brown, except the ti]i, which is reddish brown. Sternum heart-shaped, 

 very dark brown, with a faint tinge of red in the middle. Legs robust, 

 reddish brown, with blackish brown spots and streaks on the tiiighs ; 

 fourth pair the longest, then the first, third pair the shortest. Eacli tar- 

 sus is terminated by tliree claws ; the two superior ones are curved and 

 deeply pectinated, and the inferior one, which is short, is inflected near its 

 base. The palpi resemble the legs in colour, and have a curved, pectinated 

 claw at their extremity. Abdomen oviform, thickly covered with hairs, con- 

 vex alwve, projecting over the base of the cepiialo-thorax ; a broad band 

 of yellowish brown, which tapers to the spinners, occupies the middle of 

 the upper part ; anteriorly it comprises an oval mark of a deeper shade, 

 whose margins are blackish ; this mark extends nearly half the length of 

 the abdomen, and its posterior extremity is pointed ; the yellowish brown 

 band has a black border broken into spots posteriorly, which form, with 

 smaller confluent ones of the same hue, oblique lines extending down the 

 sides, the ground of which is yellowish brown; under part yellowish 

 brown, with three obscure, longitudinal, dark brown bands. Plates of 

 the spiracles brown, with reddish inner margins. Sexual organs dark 

 reddish brown ; a straiglit process, enlarged and depressed at its posterior 

 extremity, is situated in a groove in their medial line. 



The male is smaller than the female ; the relative length of its legs is 

 the same, but it is darker coloured and more distinctly marked. Thighs 

 and tibiae of the first pair of legs, and thighs of the second pair, very dark 

 brown, approaching to black. Palpi very dark brown ; the second joint 

 is densely covered on the under side with black hairs ; third and fourth 

 joints short, the latter rather the stronger ; fifth joint oval, convex and 

 hairy externally, concave within, except at the extremity, which is com- 

 pact and pointed, comprising the sexual organs ; they are highly deve- 

 loped, complicated in structure, with a strong, prominent, corneous pro- 

 cess on the outer side, and are of a dark reddish brown colour. 



This species pairs in May, and in June the female spins a globular cocoon 

 of pale yellowish brown silk of a compact texture, measuring -^ of an inch in 

 diameter, in which she deposits 60 or 70 spherical eggs of a pale yellow colour. 



