VOL. III. | A New Jumping Spider, 324 
lel; fang weaker . Maxillz blunt, cut on inner margin toward 
labium. Labiuma little longer than wide, more than one-half as long 
as maxilla; sternum oval, three-fourths longer than wide, project- 
ing! between anterior coxa. Anterior coxze separated by a little 
more than the width of the labium, much larger and longer than the 
others, smaller and shorter in © than in ¢. Legs of first pair much 
larger and longer than the others ¢, 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-fifths 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 patches. 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. . 
