Peckham—Revision of the Attidce of North America. 425 
PHIDIPFUS OTIOSUS H. 1845. 
Plate XXXIV, figs. 6—6f. 
1845. Attus otiosus H. <j>, Jour. Bost. Soc. Nat. Hist., Vol. V. 
1875. Attus otiosus H. $, Occ. Pap. Bost. Soc. Nat. Hist. II, p. 59. 
1888. Phidippus otiosus P. 5. Wis. Acad. Sciences, Arts and Letters, 
VII, N. A. Att., p. 25. 
1901. Phidippus otiosus P. $, ibid., XIII, p. 288. 
Length, $ 9 mm., $ 10-15.6 mm. Legs, $ 1432, $ 4132 
or 1432, first pair heavily fringed. 
The only male that we have seen of this species, and the small 
females, are in the Britcher collection, and seem to form a va¬ 
riety of the -species described by Identz and by ourselves, from 
large females. This original form has, on the cephalothorax, a 
wide white band which crosses the clypeus and passes along 
the sides, not reaching the end nor curving up on the thorax. A 
black line extends obliquely down behind the front lateral eye, 
and ends in a tuft of dark hairs; and a second tuft appears 
above, in front of the dorsal eye. The upper surface may have 
been covered with hairs, but in our specimens these have been 
rubbed away, leaving a black ground color. The integument of 
the abdomen is dark, with an iridescence that shows through the 
hairy covering. The basal band is made of long white hairs, 
and on the side, beyond the end of the band, there is usually a 
white spot, the sides being lined with black and white. Above, 
behind the basal band, is a pair of white spots. In the middle 
of the back is a large white triangle, sometimes broken into two. 
Hear the apex are two large white or pinkish spots, concave, 
and with the border notched, on the inner side. Between these 
spots the middle dark band is very metallic. There are many 
long black and white hairs growing over the surface of the ab¬ 
domen. 
The falces have white scales above and are metallic green be¬ 
low. The legs are heavy, sometimes all dark, and sometimes with 
the proximal ends of the joints lightened, with many close white 
scales. The hairs above the femur of the first are long and 
