40 University of Michigan 



the margins of the lakes in the Devils-Stump Lake region it 

 was the most abundant species of the genus, with the exception 

 of M. angnstipennis. It is more frequent in moist habitats, or 

 those characterized by thick growths of herbaceous plants, than 

 in dry and sparsely vegetated ones, in this respect showing a 

 nearly opposite type of habitat preference to that of M. in. 

 atlanis. On the western side of the state M. femur-rubriim 

 seems to be less common than in the east, presumably on 

 account of the more arid conditions. 



This species appears to be of secondary importance in this 

 region from the economic standpoint. Observations made in 

 the vicinity of Bottineau showed that while M. femur-ruhrum 

 was very abundant in the waste fields overrun with Russian 

 thistle and other weeds, it was only fourth or fifth in relative 

 abundance in the grain fields. 



Melanoplus borealis Junius (Dodge). — Devils Lake, Aug. 

 8, 1919, I male; July 23, 1920, 2 males, 3 females, i juvenile; 

 Sheyenne River, Eddy Co., July 25, 1919, i male; Lake Upsi- 

 lon. Turtle Mountains, July 15, 1919, i female; Aug. 6, 1920, 

 2 males, 4 females. 



A few specimens were taken by sweeping the growth of 

 sedges, grasses and tall herbage around the margins of a small 

 pond on the flats between Devils Lake and East Bay; search 

 of over an hour in this locality revealed only five adults, 

 although nymphs which may have belonged to this species 

 were fairly common. In the Turtle Mountains a single female 

 was taken among a thick growth of tall herbaceous plants com- 

 posed largely of goldenrod, fireweed, nettles, and Helianthus, 

 bordering a low, marshy area, and others in a similar but 

 somewhat drier situation on a hillside. One specimen was 

 found among a clump of cat-tails bordering a small pond in 

 the center of a marsh. 



