452 J. H. Hmerton—New England Spiders of 
The cephalothorax is yellowish brown, darkest in front and nearly 
black around the eyes. The legs are the same color as the thorax, 
darkest toward the tips. The abdomen is dark gray with light yel- 
lowish marks on the back. On the front half of the abdomen are a 
middle and two lateral stripes and behind these four or five pairs of 
oblique markings. 
The eyes are all small and about equal in size. The front row is 
about half the width of the head and the eyes equidistant. The 
upper row is longer and the lateral eyes considerably farther from 
the middle ones than these are from each other. The mandibles are 
large and strong. 
The calamistrum is a double row of spines, half the length of the 
hind metatarsus. 
The male differs but little from the female, except that the ab- 
domen is a little smaller and the front legs longer. The male palpi 
are very large. The tibia is as short as wide. It is bent inward, 
and has a large spine on the outer and another on the upper side, 
each nearly as long asthe tibia. On the inner side is a third smaller 
spine. PI. x, figs. 3¢, 30, 3c. The tarsus and palpal organ are large 
and round. Fig. 3a. The epigynum is large and dark colored. 
The middle lobe is large and enclosed by the others only at the 
sides. Pl. x, fig. 3. 
Boston, Salem, Beverly, Mass.; Providence, R. I; Albany, N. Y.; 
New Haven, Conn., in cellars and houses. . 
Amaurobius tibialis, new sp. 
Pu. X, FIGURES 3 TO 3c. 
Female 8™™ long. 
The cephalothorax is light brownish yellow, not darker in front. 
_ The legs are of the same color and not much darker at the tips. 
The light markings on the abdomen are united into a middle band 
with oblique branches at the sides on the hinder half. 
The middle lobe of the epigynum is entirely concealed, the lateral 
lobes divided by a groove in the middle. PI. x, fig. 2. 
The middle process on the tibia of the aie palpus is short, but 
the other processes are much larger than in the other species. The 
outer one is about as long as the tibia is wide, and has a large hook 
on the inner side. The inner process is long and slender, curving 
over the back of the tarsus and extending nearly to the end of it. 
Piix, figs..24,.20; 
This species is found on Mt. Washington, N IL., up to the highest 
trees. 
