44 PECKHAM. [Vol. 3. 



The legs are dark brown, the first and second pairs being 

 the darkest. In the male the tibia and metatarsus of the first 

 and second legs, especially of the second, are highly iridescent, 

 and have, on both upper and under sides, long fringes of stiff 

 hairs, longer on the second leg than on the first. These fringes 

 are deep black on the first leg, and on the under side of the 

 second, while on the upper side of the second leg they shade, 

 through two-thirds of their length, from a light to a very dark 

 brown, and then have the tips pure white, making a strong 

 contrast. In one of our males this fringe has the pure white 

 edge, but is otherwise pale brown without any shading. 



We have five females, anda great many males from the 

 eastern part of Guatemala. 



ESCAMBIA PAEVULA, SP. KOV. 



Plate III, figs. 4-4c. 



S . Length, 5. Length of cephalothorax, 1.8 ; width of 



cephalothorax, 1.3. 

 9 . Length, 6. Length of cephalothorax, 2 ; width of 



cephalothorax, 1.5. 

 Legs, S 4312 ; $ 4312 ; the first and second pairs in 



the male stoutest, and having double fringes of 



hair. 



In this species there is a very slight broadening of the 

 cephalothorax behind the dorsal eyes, which is more marked 

 in the male than in the female. The upper surface, from the 

 anterior eyes through half the thoracic part, is very gently con- 

 vex, the highest point being at the dorsal eyes, from which the 

 slope forward is a little more pronounced than behind. The 

 final drop to the posterior margin is very abrupt but not quite 

 vertical. The upper surface of the thoracic part just behind 

 the dorsal eyes, which may be called the thoracic plate, is 

 crescent shaped. The sides are vertical in the cephalic part 

 and nearly so in the thoracic. The quadrangle of the eyes is 

 equally wide in front and behind, is one-fourth wider than 



