504 Wisconsin Academy of Sciences, Arts and Letters. 
The single specimen is unfortunately rubbed. The cephalo- 
thorax was probably covered with white hairs growing on a 
dark skin. The abdomen has a thin covering of white hairs 
over a reddish integument, and is marked by four rows of white 
spots, two down the middle and one on each side. When wet, 
two round dark spots appear on the middip of the back. 
The palpi are light. The legs have the proximal joints 
brown and the distal joints, especially in the third and fourth 
pairs, light, darkening toward the ends. 
There is a single female in the Britcher Collection, unmarked 
as to locality, but probably from Maine. 
ICIUS NIGROMACULATUS K. 1885. 
Plate XLI, figs. 9—9a. 
1885. Icrus nigromaculatus Keyserling £, Yer. zool.-bot. Gesell., 
Wien, p. 500. 
Length, $ $ 5.5 mm. Legs, $ 1423, ? 123 (fourth pair 
missing) ; first pair much the stoutest. 
Spines, S $ , tibia I 3-3, tibia II, 1-1 and two farther back, 
with 1 anterior lateral; met. I, II 2-2. 
We have a female which agrees with the type (a male) in 
color and marking. The cephalothorax is dark brown covered 
with yellowish-white scales, with white hairs above the front 
eyes and on the clypeus. The abdomen is covered with reddish- 
yellow scales, the male having a narrow white basal band which 
passes halfway along the sides. On the front of the dorsum are 
two oblique blackish spots, and farther back, beginning in front 
of the middle and extending to the spinnerets, is a notched band 
of the same color, which grows narrow toward the end. These 
dark marks are on the integument and show through the scales, 
and are more distinct under alcohol than when dry. The first 
leg is yellowish-brown clouded with dark under the femur and 
tibia. The tibia has a slight black fringe. The second and 
