Supplement to the New England Spiders. 183 
The length is about 4 mm., the sexes differing little in size. The 
cephalothorax and abdomen are about equal in length. The cephalo- 
thorax is wide in front ; about two-thirds as wide as it is at the widest 
part, and the rows of eyes are almost straight, the upper row only 
slightly longer than the lower. The palpi of the female are as long as 
the cephalothorax, and those of the male longer. The maxille have 
the ends straight and nearly parallel, as in Exoplognatha marmorata, 
not oblique as in Steatoda borealis. The sternum is as wide as long, 
widest between the first and second legs and slightly pointed behind. 
The colors are dull brown and gray, without any markings. The ce- 
phalothorax is smooth andshining and darkened a littletoward the head. 
The legs are brown like the cephalothorax, darkened toward the tips 
and covered with fine hairs. The abdomen is gray, generally lighter 
than the cephalothorax, and covered with dark gray hairs. The 
epigynum has a characteristic pear-shaped piece in front, Pl. 14, 
fig. 1c, but in some individuals this piece is oblong, Pl. 1, fig. 1d. 
The male palpi are stout and three-fourths as long as the rest 
of the spider. The tibia and patella are both short and together 
equal in length to the tarsus. The tibia is a little narrowed at the 
base and widened at the end around the base of the tarsus on the 
outer side. The tarsus is narrow, only partly covering the palpal 
organ. Near the tip it has a notch on the upper side, and two 
curved stiff hairs, Pl. I, fig. 1a. 
Pedanostethus pumilus, new. (Plate I, figures 2, 2a.) 
In the maple swamp at Clarendon Hills, south of Boston, three 
males have been found of this small species. It is 2.5 mm. long, 
colored like very light individuals of vifarius, and resembling it in 
every respect except in the palpi. These are proportionally shorter 
than in riparius, being not much longer than the cephalothorax. The 
tibia is more contracted at the base than in r7parius, and the tarsus 
is shorter, rounder and thicker. The notch near the tip is wider 
and there are no special hairs. The female is the same size and 
color as the male. The epigynum is short like that of 7parius but 
has the front piece wider than long instead of pear shaped fig. 2a. 
One male also found near the Carter notch, White Mountains, 
Aug., 1906, and another at Three-mile Island, Lake Winnipesaukee. 
Pedanostethus spiniferus, new. (Plate I, figures 3, 3a.) 
The male is 2.5 mm. long, and pale like pumil/us, and resembles 
it except that the lateral eyes of the upper row are a little farther 
-back. The palpi have the tibia shaped much as in riparius, not 
