Dec., 1885.] history society of Wisconsin. 
73 
9 . Total length 10.7 mm. Width of abdomen 3.4 mm. 
Cephalothorax: length 5 mm; width 3.7 mm; height 2o mm. 
Legs 8.6, 9.1,10.8, 10.9. Pat. + tib. I 3.9; pat. + tib. Ill 
4.2; pat. + tib. IV 4.1; metat. + tar. IV 3.8. 
The posterior slope of the cephalothorax is less rounded than 
in the $. The quadrangle of the eyes is wider than long. 
The anterior lateral eyes are somewhat more separated from the 
middle eyes than in the <?, and the sternum is more sharply 
truncated in front. The labium is a little longer than wide, and 
a little more than half as long as the maxillas. The relative 
length of the legs is 3, 4, 2, 1, the first and second paiis being 
the stoutest. There are spines on the upper surface of only the 
third and fourth pairs. 
Coloration. $ . 9 . The cephalothorax is black; there is an 
indistinct patch of whitish hairs just above the middle anterior 
eyes, and a smaller patch behind each of the eyes of the second 
row. A little way behind the dorsal eye, on each side, is a 
longitudinal band of white hairs which becomes narrower and 
somewhat curved as it passes backward. These bands aie some¬ 
times united behind. It seems probable that the upper surface 
of the thoracic part was originally covered with white haiis, 
which have been more or less rubbed off in the different speci¬ 
mens. On the lower borders of the cephalothorax are bands of 
white hairs which extend from about opposite the dorsal eyes to 
that part of the cephalothorax which is overlapped by the abdo¬ 
men. The ground color of the abdomen is black. At the base 
it is covered with whitish yellow hairs, through which there 
sometimes runs a transverse line of white hairs. Just behind 
this region is a large spot of bright red hairs which occupies the 
central anterior portion of the dorsum, and which, m the S , 
takes somewhat the form of an obtuse triangle. Behind this 
spot, and touching it, is a transverse band of white hairs (broader 
in the 9 ), which is frequently (especially in the 9 ) interrupted 
by black in the middle line. Behind this band the color of the 
middle region of the abdomen varies from whitish to yellowish. 
Near the-spinnerets is a line of white hairs which, in the 9 > is 
parallel with the white band; in the $ it takes the form of a 
