Peckham—Revision of the Attidce of North America. 469 
tarsus has two pairs; the tibia of the second, in the female, has 
underneath, one pair, and a single spine farther hack, besides 
one anterior lateral. 
In the male the cephalothorax is dark brown, deepening to 
black around the eyes, and having whitish bands on the sides. 
The abdomen is bronze-brown, with a white basal band which 
reaches half-way along the sides, and sometimes has, on the 
posterior dorsum, two pairs of oblique white bars, alternating 
with three pairs of indistinct dark spots. The legs are not dis¬ 
tinctly annulated; the femora, especially those of the first pair, 
are darker than the other joints. In the female the cephalotho¬ 
rax is brown, covered with small gray scales. The abdomen is 
whitish on the base and sides. The back has two dark longitu¬ 
dinal bands, broken by three pairs of white bars, extending from 
in front of the middle to the spinnerets; outside these bands the 
color of the abdomen is yellow; between them the front half of 
the space is filled by a block of white, the color behind being 
golden-yellow. The legs are light-brown, not annulated. The 
venter is pale with two dark stripes, and sometimes a third 
stripe, less distinct, in the center. 
We have this species from the neighborhood of San Fran¬ 
cisco and from Sisson, in California; and from S'alem, Oregon. 
Mr. Banks has it from Olympia, Washington. 
The figure of seneolus is drawn from a perfect female speci¬ 
men. When the spider is rubbed, and especially when looked 
at under alcohol, the markings appear much like rubbed speci¬ 
mens of versicolor, capitatus and montanus. 
DENDRYPHANTES CAPITATUS H. 1844. 
Plate XXXVI, figs. 4—4c. Plate XXXVIII, figs. 5—5a. 
1844. Atttjs capitatus H., Jour. Post. Soc. Nat. Hist., IV. 
1845. Attus H. (parvus, octavus), ibid., V. 
1875. Attus H. (capitatus, parvus, octavus), Occ. Pap. Boston S'oc. Nat. 
Hist, II, pp. 51-70. 
1883. Attus aestivalis P., New or little known Attidse, p. 2. 
1885. Icius ceassiventee K., Ver. zool-bot. Gesell., Wien. VI, p. 503. 
