48 PROCEEDINGS OF THE NATIONAL MUSEUM tol. no 



vol. 23, p. 2, 1945; vol. 24, p. 348, 1946; vol. 28, p. 255, 1950; vol. 33, 

 pp. 10, 341, 1955). Treherne and Buckell (1924, p. 26) described it 

 and Bradynotes chilcotinae Hebard (now Buckellacris chilcotinae 

 chilcotinae) as the most common and injm'ious grasshoppers "in the 

 lightly timbered areas of the summer range in the Chilcotin section 

 (of B. C.) dm-ing 1920 and 1921." In 1921 A. G. Ruggles reported 

 to the Insect Pest Survey, U. S. Department of Agriculture, that 

 damage by bruneri was occurring at Grand Rapids, Minn, The 

 frequency of its capture on upland ranges in Montana suggests its 

 importance there, as do comments on its abundance by Pepper, 

 et al. (1953). 



An unusual infestation of bruneri occurred on Mt. Moriah, Nev., in 

 the 1930's. Material collected Sept. 2, 1937, and Aug. 16, 1939, is in 

 the U. S. National Museum, and data on the infestation have been 

 obtained from Lee M. Burge, Division of Plant Industry, Nevada 

 Department of Agriculture. Mt. Moriah is located about 35 miles 

 east of Ely, Nev., just north of Baker. The infested range is a large 

 table area at an elevation of about 11,000 feet, bearing a valuable 

 stand of bunch grasses and grazed over by sheep. Injurious popula- 

 tions of bruneri existed there in 1936-1938. During the first 5 days 

 of September 1937, poison bait was carried up to the sheep range by 

 pack mules and spread by hand. Later in 1937 a survey indicated 

 that approximately 2,000 acres carried a population of 20 adults per 

 square yard. A visit made by Nevada entomologists during 1938 

 coincided with a hail storm, and it was estimated that half of the 

 large population then existing was killed by the hail and cold. 



No detailed food-plant studies of bruneri have been reported, but 

 the general ecology is rather well known. Morse (1908) described 

 the species (as alasJcanus) as the dominant Melanoplus on Isle Royale, 

 Mich., and recorded it from clearings, along trails, rock ridges, the 



Explanation of Figure 11 

 Posterior view of male subgenital plate (except ^(4), which is ventroposterior view). 



a: Melanoplus bruneri: 1, 2 from Ft. McLeod, Alberta, Canada (2 specimens); 3, 4 from 



Mt. Moriah, Nev. (2 specimens); 5, from Crook Co., Wyo. 

 b: M. borealis siupefactus: 1, lectotype; 2, 4, 5, 6, from Mineral Co., Colo. (4 specimens); 



3, from Los Pinos, Colo.; 7, from Silverton, Colo. 

 c: M. borealis borealis: 1, from Nain, Labrador, Canada; 2, 3, from Cummington, Mass. 



(2 specimens). 

 d: M. borealis palaceus: 1, 2, 4, from Lakeview area, Mont. (3 specimens); 3, topotype; 



5, holotype (x, rectangular vertical area). 

 e: M. borealis utahensis: 1, holotype; 2, from Big Cottonwood Canyon, Utah; 3, from 



Ogden, Utah; 4, ventroposterior view of same specimen as 3. 

 '; Intermediate between M. borealis utahensis and M. borealis palaceus, 3 miles north of 



Mantua, Utah. 



