No. 1.] ATTID^E OF CENTRAL AMERICA. 83 



slender look which characterizes dyhowskii and similis, both 

 cephalothorax and abdomen being broader in proportion to 

 the length. The legs are longer in proportion to tlie body 

 than in similis, to which species it is closely related. 



The cephalothorax, in our specimen, is somewhat rubbed. 

 The integument, which is black, seems to have been covered 

 with yellow hairs. There are white bands on the sides. The 

 upper part has three large white spots, one on each side of 

 the cephalic part just behind the ej'^es of the second row, and 

 one on the middle of the thoracic part. The clypeus is thinly 

 covered with white hairs. The falces are dark brown. The 

 anterior part of the abdomen is covered with 3'ellow hairs ex- 

 cepting a white band which curves around the end and extends 

 on to the sides. An angular white band, ending, on each side, 

 in a white spot, crosses the back, just behind the middle. 

 Behind this is a black space and then a transverse curved yel- 

 low band, in the middle of which is a fine black chevron. The 

 posterior end is black, with three white spots, one in the middle, 

 and one low down on each side. The spinnerets are very 

 short. The legs are brown, marked with black, the first pair 

 darkest. The palpi are yellow, much lighter than the legs, and 

 are thinly covered with white hairs. 



We have a single female from Panama, sent us by Count 

 Keyserling. 



PACHOMIUS SIMILIS, SP. NOV. 



5 . Length, 7. Length of cephalothorax, 3 ; width of 

 cephalothorax, 1.8. 

 Legs, 4312 ; first and second pairs stoutest. 

 Length of fourth leg, 5.5. 



This species, which is not from Central America, but from 

 Trinidad, is described in this place because it is almost identical 

 in color and markings with flavescens. The cephalothorax, 

 however, is a little lower, the whole body is plainly longer and 

 narrower, and the legs are both relatively and actually shorter 

 than in that species. 



The quadrangle of the eyes is equally wide in front and 



