Occasional Papers of tin Aliisciim of Zoology 43 



made both in 1919 and 1920, but no specimens were then 

 found ; it may be more common than is supposed, having 

 been overlooked on account of maturing late in the season. 

 At Amidon specimens were taken in dry pastures and amon^ 

 roadside herbage on the uplands in the vicinity of the town ; 

 it was one of the less common of the Acrididae in this region. 

 Two of the males, taken the 23d and 24th of August, were 

 teneral. In the field the ligbt markings on the pronotum and 

 the striped hind femora make it quite conspicuous and easily 

 distinguishable from its congeners. 



Melanoplns infantilis Scudder. — Devils Lake, July 26, 1919, 

 I female; July 15-Aug. 13. 1920. 28 males, 23 females; Stump 

 Lake, July 24-25, 1920, 7 males, 5 females ; Sheyenne River, 

 Eddy Co., Aug. 8, 1920, 4 males, 3 females ; Lake Upsilon. 

 Turtle Mountains, July 30-Aug. 6, 1920, 18 males, 2 females; 

 Bottineau, July 16. 1919, 2 males; July 31-Aug. i, 1920, 2 

 males, 6 females ; Buford, July zt,, 1920. 2 males. 4 females ; 

 Williston, July 24, 1920, 6 males, 2 females; Medora, July 

 29-31, 1920, 23 males, 18 females; Amidon, Aug. 21-28, 1920, 

 10 males, 15 females. 



This diminutive locust was abundant in most part of the 

 state on dry grassland areas on sandy, gravelly, or clay soils. 

 It was not taken at Fargo (where only a small amount of 

 collecting was done, however), and is probably less common 

 in the Red River Valley than in the other parts of the state, 

 since this is near the border of its range ; east of the Red 

 River it is known only from Detroit and Fergus Falls, Minne- 

 sota.-'* In the dry pastures and stubble-fields at Devils Lake 

 and Bottineau this species fairly swarms during July and 

 August. On account of its small size and inconspicuous col- 



-* Somes, M. P.. 1914, The Acridiidae of Minnesota. Univ. Minn. 

 Agr. E.vp. Sta. Bull., No. 141, Technical, pp. i-ioo, pis. i-iv (p. 90). 



