180 J. n. Emerton — Keto England Drassidoe^ 



Most species vary greatly in size, some mature individuals being 

 twice as large as others of the same age and sex. They live on 

 plants in summer, and in winter hide under bark or stones, and have 

 at all seasons flat tubular nests of silk. 



Clubiona crassipalpis Keyserling, specimens in Mus. Comp. Zool., Cam- 

 bridge, Mass. 



Plate V, figures 1, la, Ih. 



Male 8"^™ long, sometimes smaller. Cephalothorax two-thirds as 

 wide as long. Male mandibles convex in front for two-thirds their 

 length, with a low ridge along the inner side and around the end of 

 the convex portion. The thin keel on the front outer edge is sharp 

 but short, extending only a little over the convex part. 



The tibia of the male palpus is as long as the patella. The process 

 on the outer side is long and slender, the end curved inward over the 

 tarsus. Plate v, figs. 1, \a, \h. 



Abdomen marked with brown irregular veins, the rest of the body 

 pale. Head a little darker toward the front. 



Massachusetts, Connecticut, Albany, N. Y., Providence, R. I., and 

 in N. Pike's Long Island collection. 



Clubiona mixta, new sp. 



Plate V, figures 'la, Ih. 



Resembles C. crassipalpis and of about the same size. The man- 

 dibles of the male are similarly shaped, l)ut the convexity and the 

 internal ridge are less prominent. The male palpi are a little more 

 slender and the patella proportionally longer. The process of the 

 tibia has the upper tooth nearer the hook than in crassipalpis, mak- 

 ing the process appear wider and stouter, fig. 2. The tarsus is a little 

 smaller than in crassipalpis. Plate v, figs. 2rt, 2&. 



Salem and Marblehead, Mass. 



Clubiona tibialis, new sp. 



Plate V, figures 3, .'{«, 3&. 

 Male 6*5""" long, another 5"'"' long. The male mandibles are slen- 

 der and tapering, without any distinct ridges on the front. The male 

 palpi are short and the tibia and tarsus both ver;y large. The tibia 

 is very complicated in shape, having a large hook on the outer side, a 

 short thick process on the inner side, and a thickened edge in front 

 that meets a slight elevation on the back of the tarsus. The tarsus 

 is long and large, and so is the palpal organ. Plate v, figs. 3, 3«. 



