Agalenidm and DysderidcB. 179 



and the palpal organ is small with a short tube near the distal end, 

 fig. 7c. 



These spiders live under stones in a large bag of silk in which the 

 female stays with her cocoon of eggs. In the early summer a male 

 and female live together in the nest, the female often being imma- 

 ture. 



White Mountains, N. H., to Connecticut, 



Drassus robustus, new sp. 



Plate IV", figures 8, 8a, 86, 8c. 



This is a smaller and shorter legged species than the preceding. 

 PI. IV, fig. 8. The female is 8'"™ long. The colors are darker and 

 redder, especially toward the head. The sternum, maxillje and man- 

 dibles are dark brown. The head is as wide as in D. saccatus, and 

 the eyes are a little closer. The epigynum is large, light colored in 

 the middle, and with a dark ridge each side, fig. 8a. The male is 

 much smaller than the female. The palpal organs and tarsi are large 

 and round. The tarsus is short and has a short curved process that 

 extends over the tarsus on the upper side, fig. 8^, 8c. 



Medford, Mass., July. 



Clubiona Latr. 



Cephalothorax very wide in front. Front row of eyes straight, or 

 with the middle pair a little higher than the lateral, nearly equal in 

 size and equidistant, or the middle a little larger or farther apart 

 than they are from the lateral. Upper line of eyes longer and slightly 

 curved with the middle pair highest, the eyes all larger than those of 

 the front row, and the middle pair usually farthest apart. Plate v, 

 fig. 8c. Maxilla? long, narrow at the base, and much widened beyond 

 the insertion j)f the palpi. Fig. 10. The mandibles are stout and 

 convex at the base in the females. In the males the mandibles are 

 more slender, longer and tapering at the tips, sometimes with sharp 

 ridges along the sides. Legs slender, the fourth pair longest. Feet 

 with long claws, the first and second pairs with the under side of 

 tarsus and metatarsus covered thickly with hairs widened at the end. 

 The abdomen is truncated in front and tapering behind. The colors 

 are always pale gray and drab, usually with darker brown on the 

 head around the eyes, and rarely a light brown or gray pattern on the 

 back of the abdomen. The body is covered with short and fine hairs 

 which give it a soft silky appearance without concealing the color of 

 the skin. 



