Occasional Papers of the Museum of Zoology 45. 



Melanoplus hiviftatus (Say)."^ — Devils Lake, July 9- Aug. 

 26, 1919, 13 males, 13 females; July 18- Aug. 15, 1920, 21 

 males, 11 females; Stump Lake, July 24, 1919, 8 males, 10 

 females; July 25, 1920, 3 males, i female; Sheyenne River^ 

 Nelson Co., July 25, 1919, 8 males, 5 females ; Sheyenne River, 

 Eddy Co., July 25, 1919, 6 males, i female, i juvenile; Aug. 

 8, 1920, 3 males, 2 females ; Lake Upsilon, Turtle Mountains, 

 July 15-16, 1919, 9 mt.les, 13 females; July 30-Aug. 6, 1920, 

 13 males, 7 females; BoHineau, July 16, 1919, 9 males, 13 

 females; July 31-Aug. i, 1920, 4 males, 2 females; Aug. 9,. 

 1920 (N. A. Wood), I female; Pembina, Pembina Co., July 

 12, 1921 (C. Thompson), i male; Fargo, Aug. 31, 1920, i 

 female; Buford, July 23, 1920, 9 males, 7 females; Williston,. 

 July 24-25, 1920, 4 males, 4 females; Medora, July 30-Aug. 

 3, 1920, 3 males, 2 females; Amidon, Aug. 22-25, 1920, i male, 

 6 females. 



In the eastern part of the state this was one of the most 

 abundant and omnipresent of the Acrididae. It occurred in 

 greater or less numbers in every habitat of the region, with, 

 the exception of the denser types of forest, but was less com- 

 mon in sparsely vegetated, arid situations than in more humid,, 

 thickly vegetated ones. In the grain fields and cultivated lands 

 of this region it was often extremely abundam, and a consid- 

 ■ erable proportion of the locust injuries are undoubtedly due 

 to the ravages of this species. Melanoplus bizittatus was 

 common on the flats of the Missouri River at Buford and 

 Williston, in grassland and cultivated fields. It was taken 

 among xerophytic vegetation on the barren hillsides in the 

 valley of the Little Missouri River at Medora, and occurred 

 m rather small numbers on the plains in the vicinity of Ami- 



25 Determined as Melanoplus bivittatus bknttatus (Say) by Morgan; 

 Hebard. 



