PHIDIPPUS.—PARNANUS. 287 
14. Phidippus montivagus. 
Phidippus montivagus, Peckh. Trans. Wisc. Acad. Sci. xiii. p. 293, t. 24. figg, 83, 3a(9)*. 
Type, 2, in coll. Peckham. Total length 11 millim. 
Hab, Muxico, Chibuahua (Townsend !). 
PARN ANUS. 
Parnenus, Peckham, Occas. Papers Nat. Hist. Soc. Wise. iii. 1, p. 37 (April 1896). 
Type Phidippus cyanidens, C. L. Koch. South America. 
The spiders here included under this genus differ from Phidivpus, Paraphidippus, 
and Metaphidippus in the details connected with the position of the eyes and the form 
of the carapace: the posterior eyes are wide apart, situated almost on the margin of 
the carapace, and are seated on a distinct tubercle; while the carapace is inflated 
laterally in front of the posterior eyes, and slopes abruptly behind. The maxille are 
rounded on the outer side at the apex. Whether these characters will prove of any 
value when more material comes to hand, one cannot say, but it is very doubtful. 
The males of the two species known to me, which have the same characteristics as 
those ascribed by Peckham to P. cyanidens, may be distinguished from one another, 
as well as from P. cyanidens, as follows :— 
Males. 
I. Apex of mandible blue, metallic; base not clothed with white hairs . . cyanidens, Peckh. 
II. Apex of mandible red-brown; base densely clothed with white hairs and 
pubescence. 
A. Mandible very long; teeth widely separate, the larger lower one about 
halfway between the base of the fang and the two upper smaller teeth, 
which are situated close together, the anterior being the largest. The 
upper apical angle of the basal segment bears a stout conspicuous cusp. 
Patella and tibia of palpus three times longer than broad, the latter 
with a long slender spur bent down and curling round the base of the 
bulb ; apical spine of the bulb long, slender, sinuous. Lateral white 
band of the carapace attenuated and terminating beneath the small 
eyes, not continued round the clypeus. . . . cuspidaius, sp. n. 
B. Mandible short; teeth close together, the lower tooth slightly larger 
and situated opposite the two small upper teeth, about one-third from 
the base of the fang. Upper apical angle of the basal segment without 
any cusp. Patella and tibia of palpus scarcely longer than broad, the 
spur on the latter slender and straight, not curved round the base of 
the bulb; apical spine of the bulb dilate at the base, filiform at the 
apex, straight, short. Lateral white band on the carapace extending 
entirely round over the clypeus . . . . .... . . =... .  fimbriatus, sp. n. 
