14 
ATTIDyE OF THE UNITED STATES. 
1883 
convex anteriorly. The whole cephalothorax is enlarged both above 
and on the sides, in the middle. The sides slope inward toward the 
lower margin. The color is velvety black, with two wide white lat- 
eral bands beginning just before and below the dorsal eyes, and al- 
most meeting in the middle of the thorax behind the depression. 
There is a band of grayish brown hair above the anterior eyas. 
The quadrangle of the eyes is slightly longer than wide, and mark- 
edly wider behind. The dorsal is larger than the lateral eye, and is in 
a straight line with it. On the sides, just in frqnt of the dorsal eyes, 
there is a marked projection or cheek, so that the dorsal eyes are 
almost hidden from in front. The small median eye has its lower 
edge on a line with the upper edge of the lateral eye, and is much 
nearer to it than to the dorsal eye. The anterior row is slightly curved, 
a straight line from the summit of the middle eyes cutting through 
the centre of the lateral eyes. The middle eyes are touching, and are 
twice as large as the lateral eyes, which are separated from the mid- 
dle eyes by nearly their diameter. The face is so curved that the lat- 
eral are set further back than the middle eyes. The clypeus is as wide 
as the middle eyes, and vertical. White hairs cover it, and surround 
the middle eyes. 
The palpus has the tibia and patella nearly square, the tarsus oval, 
and covered with short yellow hairs. The bulb is not complicated. 
The falces are stout, long, and vertical. The fang is short. The 
anterior surface is thinly covered with thin white hairs. 
The mouth parts are black. The maxillae are narrow at the base; 
enlarged at the tip ; the upper edge is rounded, but the corners are 
sharp. The tongue is about half as long, and rounded. The sternum 
is black, about as wide as the intermediate thighs, and deep set. The 
anterior thighs are much the thickest and longest, and are separated 
by the width of the lip at the base. 
The relative length of the legs is 1, 4, 2, 3 ; they are about equal in 
thickness, but the femur of the first is slightly stouter than the others. 
In color the legs are yellowish excepting the femur of the first, which 
is black above and pale below ; the third and fourth pairs are darker 
than the lirst and second, and show some reddish rings on the patellae 
and tibiae. All the legs have, on the under side, long fine yellow hair, 
which is longest on the first pair. There are femoral, patellary, tibial, 
and metatarsal spines on the four pairs, those on the metatarsi of the 
fourth extending to the base. 
The abdomen is long and narrow, wide at the base, and pointed at 
the apex. The dorsum is much below the plane of the cephalothorax. 
The color is light brown ; behind the middle is a median, longitudinal, 
velvety black band. At the apex the abdomen is truncated, and the 
spinnerets are turned downward in the same direction as the trun- 
cated face of the abdomen, and have the same velvety dark color. In 
the middle of the abdomen is a pair of impressed dots, and a second 
pair, just in front of these, is very indistinct. At the apex are two 
