58 NEW NOETH AMERICAN MELANOPLI (ORTHOPTERA) 



are there present. In some of the juveniles the caudal femora are immaculate, 

 the majority having, however, the entire external pagina black, except for 

 invasions of the light general coloration. These invasions, when decided, break 

 the black area into characteristic Melanoploid bands, which are continued 

 across the dorsal surface of the femora. 



Like the other species of this genus, the present is probably 

 strictly geophilous, agreeing with huachucana in being an in- 

 habitant of the Encinal, or Region of Oaks, in Arizona. The 

 entire series was taken at elevations of from 5400 to 6500 feet. 



Specimens Examined: 115; 20 males, 76 females and 19 immature individuals. 



Arizona: Bill Williams Mountain, IX, 14, 1917, (O. C. Poling), 1 d\ 

 [Hebard Cln.l. Prescott, VII, 5 to VIII, 24, 1917, (Poling; Kusche), 19 d\ 

 68 d", 19 juv., type, allotype, paratypes, [Hebard Cln.]. Granite Peak, Pres- 

 cott, VIII, 17, 1917, (J. A. Kusche), 4 9, [Hebard Cln.]. Mount Union, 

 Prescott, VIII, 15, 1917, (J. A. Kusche), 1 d\ 3 9, [Hebard Cln.]. Senator, 

 Yavapai County, VIII, 12, 1917, (J. A. Kusche), 1 9, [Hebard Cln.]. 



Bradynotes chilcotinae new species (Plate III, figs. 6, 7 and 8.) 



This species is readily separable from any of the previously 

 known forms by the large triangular furcula of the male and 

 other genitalic features in this sex. 



In form it agrees best with B. caurus Scudder, the definition 

 between the disk and lateral lobes of the pronotum being weakest 

 in these species. In coloration it is dark, showing the greatest 

 reduction of the brilliant colors found on the caudal limbs in 

 the majority of the species of Bradynotes. 



The caudal tibiae are bufTy, as in B. albida Hebard, B. excelsa 

 Rehn and B. satur Scudder, but these members are often strongly 

 suffused in the present insect. 



The male cerci often fail to reach as far distad as the apex of 

 the supra-anal plate and are as slender at their apices as in 

 B. compacta Morse 10 . The male supra-anal plate, though subject 

 to considerable variation, is seen to be never of the simple, long- 

 er type developed in B. obesa (Thomas) and its closer allies, in 

 which the lateral margins are weakly concave convergent to 

 the broadly rounded apex. 



Type. — cf ; Biske Creek, Chilcotin, British Columbia. July 

 22, 1921. (E. R. Buckell.) [Canadian National Collection.] 



Size medium large for the genus; form heavy, though not as heavy as in 

 obesa and its closer allies; surface moderately pilose. Head broad and full, 

 vertex gently tumid; fastigium shallowly concave, the lateral margins thick, 



10 Compare, Trans. Amer. Ent. Soc, xlv, pi. xxix, fig. 14, (1919). 



