298 Wisco7isi7i Academy of Sciences, Arts, and Letters. 



Phidippus translatus, sp. nov.. 



Of this species we liave one female from Santarem. It is 

 so badly rubbed that a color description is impossible, but it ap- 

 pears to be exactly like P. morsitans, excepting in the form of 

 the epig}Tium. It is the only representative of this genus that 

 we have seen from South America. 



Philaeus (Thorell), ISTO. 

 PL XXIV, figs. 7-Tc. 



The cephalothorax is from moderately high to high, massive, 

 and moderately long. The sides slant outward from the upper 

 surface, especially in the males ; they are narrowed in front and 

 behind; in one species, hicolor, they are nearly parallel from 

 just behind the second row of eyes to just in front of the pos- 

 terior border, but in the others they are gently rounded. The 

 cephalic plate is inclined forward. The thoracic plate is short 

 and wide, the thorax slanting from just behind the dorsal eyes. 



The quadrangle of the eyes is from a little more than one- 

 third wider than long to nearly twice as wide as long, is equally 

 wide in front and behind, or very slightly wider behind, and 

 occupies two-fifths of the cephalothorax. The front eyes form a 

 curved roAV, and are all separated, the lateral being further from 

 the middle eyes than these are from each other. They are not 

 large, the lateral being more than half the size of the middle 

 eyes. The second row is slightly nearer to the first than to the 

 third. The third row is not so wide as the cephalothorax at 

 that place. 



The relative length of the legs is 1243, 1423, or 4132. 



Philaeus clirysis has the second row of eyes plainly nearer 

 the first than the third row, as in Phidippus, but we place it in 

 this genus because the quadrangle of the eyes is but little wider 

 behind than in front. It has, moreover, metallic scales, which 

 are not commonly found in Phidippus. 



In distinguishing Philaeus from the closely allied genera we 

 have made the following notes : 



