178 NORTH AMERICAN MELANOPLI (ORTHOPTERA) 



in grasses and among Hudsonian Zone plants near Fox-Tail Pines and firs) , 

 3#, 49. Mountains north of Soldier, (L. Bruner), 4 3, 11 3$. McCall, 

 Big Payette Lake, 5000 feet, VIII, 11, 1910, (Rehn and Hebard; pair only 

 found after long search in heavy conifer forest where only undergrowth was 

 a few grasses and wild strawberry plants), 1£, 1$ (atypic). Evergreen in 

 Washington County, 3600 feet, VIII, 12, 1910, (Rehn and Hebard; only 

 specimens found after long search in or near thickets of wild rose and 

 Spiraea betulifolia in conifer forest on lower edge of Canadian Zone, with 

 more Western Yellow Pine than higher up), 1#, 2$ (atypic). 



The richly colored males from McCall and Evergreen are 

 atypical and may indicate the presence in central western Idaho 

 of an undescribed geographic race. The supra-anal plate and 

 cerci are decidedly shorter than normal while the dorsal lobes 

 of the penis show distinct livergence toward the type developed 

 in indigens digitifer. The specimens from Evergreen are, in 

 addition, unusually small. 



It is noteworthy that the species was not found below 6000 

 feet in either the Salmon River or the Sawtooth Ranges. 



Melanoplus indigens digitifer new subspecies 



(PI. XII, fig. 9; pi. XIII, figs. 4 and 5.) 

 vS 1897. Melanoplus saltator Scudder (in part), Proc. U.S. Nat. Mus., xx r 



p. 262. [ $ ; Loon Lake in Colville Valley, Washington. 12 ] 

 1928. Melanoplus indigens Hebard (in part), Proc. Acad. Nat. Sci. Phila., 

 <N* lxxx, p. 268. [Bear Mountain, Idaho.] 



This race in external characters is apparently indistinguish- 

 able from indigens indigens except in average differences in the 

 male cercus, which appendage in the present species shows more 

 individual variation than is usual in the genus. The races of 

 indigens can indeed be said to be safely distinguished only by 

 the characters shown by the penis and differences from the 

 normal in that organ are here noted for three males recorded as 

 atypical indigens indigens. 



Typical material of indigens digitifer differs from indigens 

 indigens in having the dorsal lobes of the penis more elongate, 



11 One male in form of the penis shows divergence toward indigens 

 digitifer. 



12 This female quite closely resembles the females from Haines, Oregon, 

 except that it is larger than the largest, with tegmina broader and frontal 

 costa with lateral carinae more prominent. Though quite possibly repre- 

 senting the present race, this assignment can not be made with any 

 certainty until males from that region have been secured. 



