82 PECKHAM. [Vol. 3. 



varies from a dark rich red to a bright orange. A white band 

 passes around the anterior end and half-way down the sides, 

 ending in an enlargement which bends upward on to the dor- 

 sum. A little further back, on each side, is another white 

 spot, which passes upward from the side on to the back. Down 

 the middle is a blackish band, upon which are two large white 

 spots, one about in the middle and one near the spinnerets. 

 The legs are light or medium brown, the first pair being the 

 darkest, and have patches of short white hairs. In the light 

 specimens the fourth leg shows a black line on each side of the 

 patella and tibia. The palpus is light brown, with the upper 

 surface of the patella and tibia covered with snow-white hairs. 

 The falces are dark brown. 



The cephalothorax of the female is black with only a nar- 

 row white line around the sides, and with the clypeus thinly 

 covered with white hairs. Our specimens are badly rubbed, 

 but show some orange colored hairs on the cephalic part and 

 around the anterior eyes. The palpi are yellow, thinly covered 

 with white hairs. The coloration is otherwise like that of the 

 male. 



We have numerous specimens from Guatemala, New 

 Grenada and French Guiana. 



PACHOMIUS FLAVESCENS, SP. NOV. 



Plate VI, figs. 11-lla. 



9 . Length, 6.4. Length of cephalothorax, 3 ; width of 

 H cephalothorax, 2. 



Legs, 4312 ; first and second pairs stoutest. 

 Length of fourth leg, 6.5. 

 A medium-sized species having the abdomen yellow, with 

 white bands and spots. 



The quadrangle of the eyes is equally wide in front and 

 behind and occupies more than two-fifths of the cephalothorax. 

 The clypeus is one-half as higli as the anterior middle eyes. 

 The falces are vertical and moderately stout and are plainly 

 longer than the face. This species has not the rather long and 



