156 Annals Entomological Society of America [Vol. V, 
Ventral plates irregularly punctate, more densely so on caudal 
portion. Median sulcus beginning a little caudad of anterior margin 
and extending over anterior two-thirds or somewhat more of length of 
plate; a submarginal sulcus on each side which is deepest mesally; 
usually two or more weaker and more indefinite transverse sulci as 
shown in the figure. (See Pl. XIII, fig. 5). 
Last ventral plate narrowed caudad; rounded caudally; bearing 
spinules over entire surface. 
Last pleuree furrowed laterally; with numerous small pores on 
ventral surface, both the free portion and that covered by ventral plate. 
Caudal process bearing acute spine distad. Pleurze with many spines 
laterally and ventrally. (See Pl. XIII, fig. 4). 
Prefemur of anal legs longitudinally furrowed both ventrally and 
dorsally; armed with numerous spines arranged in obliquely longitu- 
edinal rows which cover entire surface excepting dorsal portion and the 
furrow on the ventral. Femur also longitudinal furrowed dorsally and 
ventrally, the mesal side of ventral furrow formed by a keel-like eleva- 
tion which does not quite reach distal end. Spines on edge of keel and 
elsewhere on ventral surface as shown in figure. Tibia with a mesally 
bent longitudinal keel, the bent mesal portion lower than end parts, this 
keel limiting a broad groove mesally, into which groove the tarsi of the 
specimen are bent or flexed like the blade of a knife. First joint of 
tarsus with at least one ventral spine; claw long and stout. 
Length about 20 mm. 
Locality: Glorieta, New Mexico (Prof. T. D. A. Cockerell). 
The original type was collected by the author at the Warm 
Springs north of Salt Lake City in 1908. 
Family SCOLOPENDRID. 
Genus Scolopendra Linn. 
Scolopendra mohavea sp. nov. 
Very pale olive brown; the caudal half of body darker brown, dusky, 
or in one specimen largely solid black, with a pale longitudinal median 
line, Head paler cephalad of frontal suture. 
Head with a transverse sulcus a little ways in front of the caudal 
margin, and between this stilcus and the caudal margin two straight, 
short, longitudinal sulci which are parallel. Cephalad of trnsverse 
caudal sulcus a pair of furrows which converge forward and end caudad 
of frontal suture, each furrow doubly curved, at caudal portion with 
concavity ectad, anteriorly convex ectad, the very anterior end bent 
abruptly mesad; ectad of each one of these furrows a second less sharply 
impressed furrow which also converges toward the mesal line cephalad; 
between the two sulci on each side a ‘short sulk runs obliquely cephalo- 
ectad. Smooth. 
Antenne long; composed of twenty-six Ae ae of which the first 
six or seven are comparitively smooth, the scattered hairs upon them 
increasing on number from the first article distad. 
