Smithsonian Report, 1952.— Gurney 



Plate 8 



^^ 



Specimens of Melanoplus rugglesi Gurney. showing Differences in Size 



and Wing length 



A, male of solitary phase from Rock Springs, Wyo., 1922; B, female of solitary phase from 

 Wild Rose Canyon, Panamint Range, Inyo County, Calif., 1922; C, female in intermediate 

 phase from near Whitehorse, Oreg., 1949; D, male of gregarious (migratory) phase from 

 Craine Creek, Humboldt County, Nev., 1948; E, female of gregarious phase from Gerlach, 

 Washoe County, Nev., 1947. Enlarged 2 l / 2 times. Photographs by Floyd B. Kestner. 



