64 NEW NORTH AMERICAN ACRIDID^E BRUNER. 



Vertex between the eyes rather broad, the fastigium either right-an- 

 gled ( $ ) or slightly obtuse ( 9 ), not so deeply sulcate as in ElliottU and 

 decens; lateral foveolae rather large and prominent, a little elongate, 

 the upper and lower edges parallel, the latter not quite horizontal; 

 frontal costa continuous to the clypeus, but gently sulcate iu the male, 

 scarcely depressed at the ocellus in the female. Eyes rather large, not 

 promiumt, rounded behind, nearly straight in frout. Prouotum as in 

 the other species, except that here the median carina is but once severed 

 by the transverse sulci. Tegmina and wings about as long ( 2 ) or a trifle 

 surpassing the tip of the abdomen ( S ). Posterior femora stout, just 

 reaching the tip of the body in the female but surpassing it in the male. 

 Posterior tibia? with the second inner terminal claw long and strong, 

 much as in the genus Scyllina. 



General color dull brown, in some specimens inclining to ferruginous, 

 tlie tegmina usually very heavily and evenly mottled with dark brown 

 quadrate spots, sometimes only confined to the disk. Some specimens 

 have a light testaceous band reaching from the vertex backwards across 

 the middle of the occiput and prouotum to the tips of the tegmina. 

 Posterior femora marked as in the other species, but plainer; hind 

 tibia? bright coral red with a whitish basal annulus, the knee deep 

 black ; antenna? ferruginous, testaceous or lavender — usually the lat- 

 ter in living specimens. Lower surface dirty yellowish-white. 



Length of body, $ . 14.5 mm , 9 , 20""" ; of antenna?, $ , 10'""', 9 , 7""" : 

 of prouotum, 5,3.1""", 9,3.45"""; of tegmina, $ , ll 1 ""', 9,12-14"""; of 

 hind femora, 8 , 10.5""", 9 , 11.65""". 



1JAB. — Nebraska, Dakota, Colorado, Wyoming, Montana, British 

 America in Saskatchewan Valley (Bruner); Kansas (F. W. Cragin). 



This is a very common species throughout the region west of the 

 Mississippi River. 



Mestobregma pulchella sp. uov. 



A beautiful greenish- white species marked with black and gray; wings 

 hyaline, without a band as in M. Mowa. Distinct from all other North 

 American species in habits and appearance. 



In general form and size most closely related to M. Mowa, but differ- 

 ing from that species in its somewhat smaller size, the proportionately 

 broader lower face, the smaller eyes, and generally smoother surface of 

 head and prouotum. 



The general color is a beautiful greenish white, iu imitation of the 

 plant upon which it feeds; heavily marked with the characteristic 

 markings belonging to genus, which in the present instance are black 

 and quite sharply defined. These latter are arranged as follows: A nar- 

 row transverse line connecting the upper extremities of the eyes, another 

 but broader extending from the edges of the frontal costa immediately 

 below the base of the antenna- backward across the lower half of the eyes 

 upon the sides of the prouotum to the first transverse impressed line; 



