200 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
tionately more slender, one or two extra points may occur in addition 
to the five ordinary teeth, (Plate 7, fig. 5-7). 
Scopulae of anterior tarsi divided by a narrow setose line, the 
posterior ones by a broader one, but this much narrower than the 
joint. Anterior metatarsi scopulate well toward base; posterior 
with scopular hairs only distally and there sparse or absent. Meta- 
tarsus I (female) ventrally with a pair of small apical spines and a 
single one proximad of middle. Tibia I (female) also ventrally with a 
pair of spines at distal end and a single submedian one; in thé male 
with seven spines on ventral and ventrocaudal surface and two on 
anterior surface. Metatarsus IV with fifteen to eighteen spines 
irregularly arranged; tibia IV with eight to ten. 
In the male the metatarsus of leg I is abruptly much more slender 
than the tibia and is strongly bowed dorsad. The spurs of the tibia 
are elevated on a conspicuous common basal process standing at right 
angles to the article; the inferior process is not much longer than the 
superior but it is proximally stouter being narrowed distad, moderately 
curved toward end, bearing on dorsal surface a dark, stout, acute 
process attached near apex and corresponding to the larger one of 
peruvianus; superior process directed more cephalad, more uniform 
in diameter, curved a little mesad toward tip, the spine rather slender, 
closely applied to surface excepting at tip which is divergent, (Plate 
7, fig. 4). 
In the male palpus the tibia is thicker than the patella or femur, 
narrowing distad, a narrow ridge-like thickening mesoventral edge 
from middle distad and elevated at distal end into a low tubercle, 
ventrally with a dense growth of long bristles. Tarsus short, bilobate 
as usual, the mesal lobe at distomesal corner adjacent to bulb extended 
into a blackish, densely chitinized tubercle. Spine of bulb propor- 
tionately much longer than in peruvianus, basal part with axis corre- 
sponding with long axis of bulb, curving semicircularly first venttad 
and then forwards as shown in the figure, a slight tooth a little distad 
of middle, in anterior view the process bends first somewhat ectad. 
Male (Type, Cuzco Valley). Length,29 mm. Length of cephalo- 
thorax, 14 mm.; width, 12.3 mm. 
fem. tib.+ pat. met. tar. total 
Leg I 10.8mm. 14mm. 8.1mm. 5.4mm. 38.3 mm. 
Leg II 10 ie 728 5 39.0 
Leg Ill 9 Lie2 8.3 4.5 33.0 
Leg IV Dib 14.2 LD 5.8 42.4 
Tibia I, 7.1mm. Tibia IV, 8.9 mm. 
