No. 1.] ATTIDyE OF CENTRAL AMERICA. 71 



HAMILLUS SYLVESTRIS, SP. NOV. 



Plate VI, figs. 3-3c. 



$ . Length, 5. Length of cephalothorax, 2.3 ; width of 

 cephalothorax, 1.9. 

 Legs, 3142 ; first pair a Uttle the stoutest. 



Cephalothorax broader and longer than abdomen. Gen- 

 eral color dark, except palpi, which are pale yellow. 



The falces of this species are stout and rather long, and are 

 inclined forward so that they are partly visible from above. 

 On the upper part of the inner sides is a pair of sharp teeth, 

 which are seen from above, projecting between the middle an- 

 terior eyes. The cl3'peus is narrow. 



The cephalothorax is dark brown on the cephalic part and 

 blackish on the sides and behind, with a pale streak down the 

 middle of the thoracic part. When dry it is seen to have iri- 

 descent hairs around the eyes and on the sides of the cephalic 

 part. 



Under alcohol the abdomen is brown around the front 

 end and pale on the dorsum. On the anterior part is a central 

 brown band, on which is a pale spot, and two curved brown 

 bands, one on each side. The posterior sides are brown, while 

 the central region is occupied by a triangular pale space on 

 which are several small brown chevrons. When dry the re- 

 lative importance of the colors is reversed, so that the anterior 

 part of the abdomen is brown with a white curved band in 

 front, a pale spot in the middle and a pale band on each side, 

 which branches in the anterior half, both ends reaching the 

 curved white band and thus enclosing a brown spot. The 

 outer spinnerets are dark, the inner ones pale. The palpi are 

 very pale yellow with some reddish streaks on the tarsus, and 

 are clothed with white hairs. The legs are all alike, having 

 the femur dark brown, the patella pale brown, the tibia and 

 metatarsus medium brown, and the tarsus pale. The falces 

 are of a bright glistening brown. 



