182 NORTH AMERICAN MELANOPLI (ORTHOPTERA) 



the case in indigens), internally and ventrad buffy, the ventro-external 

 section with a very faint trace of orange in the majority of the males. 

 Caudal tibiae buffy, usually with a mere trace of a glaucous tinge. 



Specimens Examined. — 14; 6 males and 8 females. 



Idaho: McCall on Big Payette Lake, 5000 to 5050 feet, VIII, 11, 1910, 

 (Rehn and Hebard; though not numerous the most abundant grasshopper 

 in the dry grasses, wild rose and other bushes in the Western Yellow Pine, 

 Douglas Fir and Western Tamarack forest of the Canadian Zone), 5$, 6$, 

 type, allotype, paratypes. Evergreen, 3600 feet, VIII, 12, 1910, (Rehn and 

 Hebard; in rather similar but less boreal environment on lower edge of 

 Canadian Zone), 19, paratype. 



Oregon: Foothills of Elkhorn Range in Blue Mountains, 3800 to 4300 

 feet, VIII, 14, 1910, (Rehn and Hebard; in undergrowth, particularly 

 Spiraea betulifolia, of steep pineclad hillsides), 1$, 19, paratypes. 



PART VIII. DESCRIPTIONS OF A NEW RACE AND 

 TWO NEW SPECIES 



This part includes the descriptions of a new race of Melanoplus 

 foedus, which was studied in the work on the Orthoptera of 

 Texas, now in course of preparation by the author, and the de- 

 scription of two unusually interesting new species of the Mela- 

 nopli, one from the Cascade Mountains in Oregon, the other 

 from the northern Sierra Nevada Mountains of California. 



Melanoplus foedus iselyi 15 new subspecies (PI. XVII, figs. 1 and 2.) 

 1907. Melanoplus foedus Morse, Carnegie Inst, of Wash., Publ. 68, p. 48. 



[ $ , $ ; Shawnee, Oklahoma ; Wichita Falls, Texas.] 

 1926. Melanoplus packardii Rehn in Hubbell, (not of Scudder, 1878), 



Proc. Oklahoma Acad. Sci., yi, p. 175. [ $ , $ ; Fort Sill, Oklahoma.] 

 1931. Melanoplus foedus fluviatilis Hebard (in part, 16 not of Bruner, 1897), 



Proc. Acad. Nat. Sci. Phila., lxxxiii, p. 187. [Cowley and Barber 



Counties, Kansas.] 

 1935. Melanoplus foedus fluviatilis Isely, Ent. News xlvi, p. 74. [Western 



Parker County, Worth Ranck in Palo Pinto County and Hill County, 



Texas.] 



Though in Kansas and Arkansas this race grades into foedus 

 fluviatilis, series now before us from Oklahoma and northeastern 

 Texas show such differences in average size and structure, colora- 



15 Named in honor of Professor F. B. Isely, who has aided the author 

 greatly in his studies on the Orthoptera of Texas, now being prepared. 



16 Four specimens then suggested as possibly racially distinct. 



