1908.] NATURAL SCIENCES OF PHILADELPHIA. 373 



acute-angulate in outline when viewed from the side, apex well rounded, 

 the dorsum of the plate with a median longitudinal lamellate carina. 

 Cephalic and median limbs very short. Caudal femora half again as 

 long as the head and pronotum together, compressed, moderately 

 slender; tibiae very slightly shorter than the femora, armed on the 

 external margin with fourteen spines. 



General color dorsad and ventrad salmon, a chalk-white bar on each 

 side extending from the caudal and ventral margin of the eye over the 

 entire gense, ventral half of the lateral lobes of the pronotum, pleura 

 and lateral face of the caudal femora. This white bar is bordered dorsad 

 by one of chocolate which is very narrow at the eye but gradually 

 expands to the middle of the pronotum, whence it as gradually contracts 

 until it is lost dorsad of the articulation of the caudal limbs. Another 

 narrow whitish line is present on each side of the head and prozona be- 

 tween the chocolate bar and the general color and a pair of lunate 

 bars of vinaceous-ruf ous are present on the occiput. Eyes tawny olive ; 

 antennae and face raw umber. Tegmina buff, humeral vein seal brown. 



Measureme7its. 



Length of body, 21 mm. 



Length of pronotum, '^ [[ 



Length of tegmen, 14 



Length of caudal femur, 9.8 '' 



The type is the only specimen of the species examined and was taken 

 on the desert summit of the Pass, among mesquite bushes and dry grass. 

 Paropomala perpallida n. sp. 



Type: c^; near Bright Angel Trail, elevation 3,750 feet. Grand 

 Canyon of the Colorado, Coconino County, Arizona. September 12, 

 1907. Collected by M. Hebard. 



This species is closely related to P. pallida Bruner from the Salton 

 Basin, California and southwestern Arizona, differing in the consider- 

 ably smaller size. 



Size small; form moderately slender (for the genus). Head very 

 slightly longer than the dorsum of the pronotum; occiput and inter- 

 ocular region regularly but not strongly arcuate from the pronotum 

 to about the middle of the fastigium; interocular region very slightly 

 narrower than the greatest f astigial width : fastigium slightly longer than 

 broad, lateral margins acute-angulate but with the apex very broadly 

 rounded, impressed pattern on the disk of the fastigium semicircular; 

 face very considerably retreating, interantennal region with the angle 

 much less acute and very narrowly rounding into the fastigium, 

 frontal costa subequal in width to below the median ocellus whence it 



