138 
Psyche 
[June 
and curving, two-thirds the length of the palpus. On the 
upper side of the tibia are two long bristles. The palpal 
organ is simple. The tube extends once and a half around 
the palpus. The lower apophysis is missing and the upper 
is white, spatulate with a thickened edge. The tutucalum 
is very small. 
1 $ holotype. New Mexico; Las Vegas. N. Banks Col- 
lection. 
Xysticus pallidus sp. n. (Figs. 11, 12, 14). 
$ 3.5 mm. long. 
The cephalothorax pale mottled brown on each side end- 
ing in a darker brown spot, small dark spot at end of 
thoracic groove; abdominal marks characteristic of the 
genus, a central serrate light stripe, with four pairs of 
dark lateral marks. Anterior legs light with very small 
dark spots, with pale line on femur and tibia; posterior 
legs with larger, dark spots, and dark rings at end of 
femur IV and basal end of tibia. Few spines on femur I, 
tibia 4-4, longer than diameter of joint, 2 lateral, meta- 
tarsus, 4-4, longer than diameter of joint, 2 lateral, tarsus 
more than half the length of metatarsus. The cephalo- 
thorax as long as femur I. 
The palpus is large. The tibia has the usual three proc- 
esses, the upper large and broad, the middle broad and 
short and the lower a rounded knob with many long hairs. 
The tube of the palpal organ is bent at the tip at right 
angles as in X . stomachosus, and is supported by a lobed 
process. The upper apophysis is reduced to a small point 
and the lower is bilobed. 
$ 4.5 mm. long. 
Cephalothorax pale brown on each side, with two pairs 
of darker brown spots; posterior part white, small dark 
spot at end of thoracic groove; abdomen lighter than ce- 
phalothorax without distinct marks. Anterior legs light 
and covered with many fine spots, the light stripe distinct 
on upper side of femur, patella and tibia; posterior legs 
pale with a distinct dark spot on the femur and a broken 
band at the distal end, patella with a dark spot at the tip, 
tibia with dark spot, near and one at the tip; spines of 
