36 University of Michigan 



fly well, though only for short distances. Elsewhere in this 

 neighborhood the species was found in small numbers, but 

 was quite generally distributed; it was usually taken among 

 sparse vegetation, seldom in bare areas. At Medora and 

 Buford it was found on sage-brush-covered slopes and in dry, 

 grassy situations. 



Melanoplus occidcntalis (Thomas).-- — Amidon, Aug. 26-27, 

 1920, 2 males. 



The only specimens of this species were found in a dry 

 pasture on the uplands near Amidon, among a low growth of 

 parched grasses and other plants interspersed with occasional 

 clumps of Artemisia and Russian thistle. 



Melanoplus Uavidiis Scudder. — Devils Lake, July 24, 1919, 

 I male; Aug. 11-17, 1920, 4 males, 10 females; Buford, July 

 23, 1920, 2 males, 2 females ; Medora, July 29-Aug. 3, 1920, 

 18 males, 25 females. 



This species was fairly common on the sandy and stony flats 

 around the shores of Devils Lake, in bare areas and among 

 scanty vegetation of grasses, liquorice, Grindelia squarrosa, 

 and many other plants. Here it was found with M. packardii, 

 to which it bears considerable resemblance in the field. It 

 was found in great abundance at Medora on the arid, sandy 

 flood-plain and the sides of the valley of the Little Missouri 

 River, among the dry grasses and sage-brush which compose 

 the greater part of the scanty vegetation. At Buford it was 

 scarce, occurring in similar situations. 



Melanoplus bruneri Scudder. — Lake L^psilon, Turtle Moun- 

 tains, Aug. 2, 1920, 3 males, 3 females. 



Quite common in a dry clearing covered with low bushes 

 and shrubs of various kinds (Coryhis rostrata, young aspens, 

 willows, birches, etc.) and tall herbaceous plants such as fire* 



22 Determination verified by J. A. G. Rehn. 



