190 Jj. H. Emerton, 
a half times as large as the other. The head is a little elevated, 
highest just behind the upper middle eyes. The epigynum is very 
simple, showing a straight edge behind, with a wide middle lobe 
separated only by slight grooves. The sternum in both sexes extends 
backward between the fourth coxe, where it is wider than the dia- 
meter of the coxe. 
Lophocarenum alpinum, Banks. . 
Dismodicus alpinus, Banks. Can. Ent., 1896. (Plate III, figures 3 
to 3f.) 
An adult male and female were found in a thin web under a 
stone near the summit of Mt. Washington, N. H., and another female 
and a male not yet molted for the last time under other stones in 
the same neighborhood. The male is 2 mm. long. The cephalo- 
thorax is half longer than wide, narrow in front and extended a 
little beyond the mandibles. The hump is rounded above and rises 
between the eyes and the middle of the cephalothorax ; it is nearly 
as wide as the front of the head, and inclines forward a little over 
the eyes. The front of the hump is covered wit) short hairs, longest 
below and turned outward toward each side. On each side of the 
hump at the level of the eyes is a groove with a round pit at the 
front end. The eyes are spread over the whole width of the head, 
the lateral pairs largest, the front middle pair very small and near 
together. The eyes of the upper row are equal distances apart. 
The palpi are longer than the cephalothorax. The tibia is shorter 
than the patella, and extended only a little over the upper side of 
the tarsus, where it is divided into two teeth, the inner one longest 
but slender and hooked inward at the end. The palpal organ 
resembles that of the last species and of L. montiferum. 
A young male almost ready for the final moult, shows a small 
hump behind the eyes and a slight extension of the front of the 
head. The palpi are much enlarged, and show the form of the 
male tibia and palpal organ indistinctly through the skin. 
In the female which is about the same size as the male, the front 
of the head is not extended forward, but there is a slight hump 
one-fourth as high as that of the male, in the same place between 
the eyes and the middle of the cephalothorax. The epigynum has 
a wide middle lobe curved on the edge and shows through the 
skin the spermathece and two irregularly coiled tubes at the sides 
of the middle lobe. 
