16 Wisconsin Academy of Sciences^ Arts and Letters. 



Anterior row of eyes very little curved; lateral ^ as large as middle eyes 

 separated from them by f their own diameter; dorsal a little smaller 

 than lateral eyes, a little further from each other than from lateral 

 borders. Clypeus about ^ as high as middle eyes. Maxillaa enlarged 

 and rounded at extremity, diverging. Labium a little more than ^ 

 as long as maxillae, contracted and truncated at tip. Sternum not 

 so wide as anterior coxae. Anterior coxse separated by width of lab- 

 ium. Relative length of legs 4, 1, 2, 3; no patellary spines. 



Coloration: The cephalothorax has the eye-region covered with short, 

 bright red hairs, mtermixed with long black hairs, the latter forming 

 small tufts between the small median and dorsal eyes; the thoracic 

 part and sides are covered with coarse yellowish white hairs; the 

 narrow lower margin is black. The abdomen has a wide band of 

 gray hairs around the base, and is otherwise covered with short bright 

 red, and long whitish hairs; at about the middle of the dorsum is a 

 large somewhat triangular spot, and behind this are two others, not 

 so large and transversely elongated, all of the same bright red color, 

 and encircled by black rings; the sides are covered with long gray 

 hairs. In specimens which are kept in alcohol the color becomes fad- 

 ed, the red changiug to whitish yellow. The clypeus and palpi are 

 covered with long white hairs; the legs are blackish, excepting the 

 metatarsi, which are reddish brown; they are covered with gray 

 hairs; tinder the femur is a stout fringe of hairs which extends less 

 heavily on to the patella and tibia; the falces are dark, but very 

 iridescent; the mouth-parts, sternum, and coxse are dark brown or 

 black; the venter has a wide central, longitudinal band black, limited 

 by the gray hairs which come low on the sides; just at the apex, be- 

 tween the black band and the black spinnerets, is a narrow, trans- 

 verse band of gray hairs. 



Habitat: Florida. Texas. 



PHIDIPPUS OBSCURUS Nov. Sp. 



Plate I, figui-e 5. Plate II, figure 5. 



{$) Total length 13 mm. Width of abdomen 5.4 mm. 



Cephalothorax: length 4.8; width 4.1; height 2.4. 



Legs 9.3, 7.5, 7.7, 10; patella and tibia of the first 4; patella and tibia of 

 the third 2.8; patella and tibia of the fourth 3.9; metatarsus and 

 tarsus of the fourth 3.4. 



Lateral eyes i as large as middle eyes, and separated from them by f their 

 own diameter. Clypeus i as high as middle eyes. Maxilla? wide at 

 extremity with projection at outer corner. Labium ^ as long as 

 maxillae, contracted and rounded at tip. Falces rather narrower 

 than is usual in this genus, extending, in width only to the inner 



