VOL. III.] A New Jumphig Spider. 333 



lei; fang weaker >. Maxillae blunt, cut on inner margin toward 

 jabium . Labium a little longer than wide, more than one-half as long 

 as maxillae; sternum oval, three-fourths longer than wide, project- 

 ing! between anterior coxae. Anterior coxae separated by a little 

 more than the width of the labium, much larger and longer than the 

 others, smaller and shorter in P than in d". Legs of first pair much 

 larger and longer than the others S, somewhat larger and longer 

 than the others^. Femoral joints compressed and enlarged. A few 

 spines on femur, patella, tibia and tarsus and metatarsus of first leg, 

 all but the patella of second, third and fourth legs, in terminal 

 ring on tarsus of third and fourth. In the first and second pairs the 

 spines are most numerous on the inner side of the leg. A few 

 femoral spines on the palpi. 



COLORATION. 



Female. — Upper cephalothorax grayish-brown with slight bronze 

 cast and a space of polished black posteriorly just in front of the ab- 

 dominal juncture. Under side black with long white hairs sparse. 



The background color of upper abdomen is black or deep brown, 

 with a heavy bronze cast over all. Beginning at the spinnerets and 

 extending about four-fifth's of the abdominal length, are two narrow, 

 black or deep brown bands. Between these bands anteriorly is a light, 

 tawny-yellowish area divided centrally by a dark streak. More of 

 this yellowish color is seen along outside the bands and on the fore- 

 part of the abdomen. There is a border of the same around the 

 anterior rim. Upon each of the black bands are four spots of the 

 same. Side abdomen light gray, under .side same, darker along the 

 median line. 



Male. — The upper cephalothorax is usually black or has the 

 gray-brown color only in j43.tches. The chief difference is in the up- 

 per abdomen, which has the same ground-color and bronze cast but 

 no yellow markings except the anterior and side rim. The bands 

 are obliterated, but often the posterior yellow spots remain.'''^ 



explanation of markings. 

 The gray-brown color of the cephalothorax is due to short, stout, 

 slightly iridescent yellow scale-hairs scattered over the black integu- 



*The foregoing description was made with a lens of a power of four or five 

 diameters. The following was made with a compound microscope of about 

 fifty diameters. 



