GRASSHOPPERS — GURNEY AND BROOKS 83 



The series from 3 miles north of Mantua, Utah, which was labeled 

 in the Philadelphia (ANSP) collection by Morgan Hebard as atypical 

 Melanoplus utahensis, is here considered intermediate between borealis 

 utahensis and h. palaceus. External male genitalia are as illustrated 

 (figs. 8,c; 9,6; 11,/; lQ,g), and the subgenital plate suggests the inter- 

 mediate relationship of the population. The lophi of the epiphallus 

 are apically lanceolate in dorsal view, well flattened at the top in 

 lateral view. The general color of these specimens is dull yellowish 

 brown; hind tibiae are tinged with pink. The general color suggests 

 that of the Red Banks series of bruneri and may reflect comparable 

 ecological conditions. 



Measurements (in millimeters) of representative Mantua speci- 

 mens are: Males (5), length of pronotum, 5.9 to 6.4 (av. 6.2), hind 

 femur, 12.4 to 14.2 (av. 13.5), tegmen, 12.5 to 15.5 (av. 14.3) ; females 

 (2), length of pronotum, 6.5, 7.0 (av. 6.8), hind femur, 14.8, 15.5 (av. 

 15.2), tegmen, 15.0, 16.0 (av. 15.5). 



Distribution : This grasshopper appears to be a relatively localized 

 subspecies of the northern Wasatch Mountains, and to be more or 

 less surrounded by AI. borealis palaceus rather than being distributed 

 linearly adjacent to M. b. palaceus. There may be altitudinal differ- 

 ences also, so that material from additional localities is likely to 

 clarify the situation. Full data on all specimens examined are as 

 follows: Salt Lake Valley, Utah, Aug. 30, L. Bruner (Icf, holotype); 

 Big Cottonwood Canyon, Wasatch Mts., Utah, 7,400 ft., Canadian 

 zone, Aug. 19, 1924, Rehn and Hebard (Sc^, 89); Ogden, Utah 

 (2c^,2o). 



Intermediate between Melanoplus borealis utahensis and M. b. 

 palaceus: 3 miles north of Mantua, Box Elder Co., Utah, Wasatch 

 Mts., 5,800 ft., Aug. 9, 1928, Rehn & Hebard. (18 cf, 179, 1 juv. cf , 

 apparently 5th instar). 



Biology and economic importance: We are indebted to Rehn 

 and Hebard for the only notes on the biology of this poorly known 

 grasshopper. In Big Cottonwood Canyon, Utah, on Aug. 18, 1924, 

 they found it in the Canadian zone at 7,400 feet, present ''in moderate 

 numbers in lush herbage near stream on flat with much aspen and 

 spruce" (Hebard, 1936b, p. 173). Hebard also gave notes on a 

 grasshopper taken at Red Banks in Logan Canyon, and ascribed to 

 utahensis, but, as previously mentioned under M. bruneri, the only 

 specimens we have seen with corresponding data prove to be bruneri. 



