610 
Mr. BuackwaLv's Descriptions of new Species of Spiders. 
‘quadrate, rather broader at the base than at the extremity; it is dark 
brown, except the tip, 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 thighs; 
fourth pair the longest, then the first, third pair the shortest. Each tar- - 
sus is terminated by three 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 above, projecting over the base of the cephalo-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 straight 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 tibize 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 3°; of an inch in 
diameter, in which she deposits 60 or 70 spherical eggs of a pale yellow colour; 
