372 J. H. Emerton — Spiders of the Family Tlwmisidm. 



little at the sides of tlie cephalothorax and the ends of the legs. On 

 the first and second legs there is a small dull red spot near the end 

 of the tibia and a longer one on the metatarsus. The whole body is 

 covered with long hairs arranged in rows. On the back of the 

 abdomen there are about twenty rows of them nearly their length 

 apart. On the legs they are in longitudinal rows a little nearer 

 together. On the cephalothorax there is a middle row directed 

 forward and another each side of it passing between the eyes. The 

 other hairs of the cephalothorax point toward the middle. The 

 body is smooth underneath, or with only very short hairs. 



Males from Blue Hills, Milton, Mass.; New Haven and Simsbury, 

 Conn.; young female from Brookline, Mass.; Washington, D. C, 

 Dr. Fox. 



Philodromus. 



Cephalothorax as wide as long, rounded at the sides and much 

 narrowed in front as far back as the base of the palpi. The front 

 row of eyes is much shorter than the upper row. The legs are long 

 and slender, the second pair longest. The third and fourth legs are 

 not much shorter than the first and second. The hinder legs are 

 wide apart and the sternum extends backward between them. The 

 feet have the claws turned backward and under them a thick bunch 

 of long hairs, wide and flattened at the end. The abdomen is longer 

 than Avide and a little pointed behind. The males are but little 

 smaller than the females and much longer legged. 



The male palpi have two processes on the tibia, the usual hard 

 hooked process on the outer side, and a flat, thinner one underneath. 



Philodromus vidgaris is a common and distinct species. The 

 others are all small and miich alike, especially the males, and the 

 difference between the sexes is so great that it is difficult to tell the 

 male and female of the same species, and the males which are 

 referred to ornatus and lineatiis may prove to belong to other species. 



Philodromus vulgaris Keys. = Thomisus vulgaris Heiitz. 



P. vulgaris Banks. P. pradusfris and F. signifer Banks are probably of this 

 species. 



Plate XXXI, figures 1-1 (7. 



Female, S"""" long. Cephalothorax, 3™'" long and the same wide. 

 Head less than half as wide as the middle of the cephalothorax. 

 The abdomen is half longer than the cephalothorax and nearly as 

 wide at the widest part. The colors are various shades of gray, 



