14 University of Michigan 



of the buttes, and on the patches of grass, Artemisia, Opuntia, 

 etc., growing on the ridges and gentler slopes in the Bad Lands 

 this species was one of those most constant in occurrence. 



Alpha cinerea (Bruner). — Medora, July 29-30, 1920, 19 

 males, 21 females. 



Found in considerable numbers on the dry, sparsely vege- 

 tated flood-plain of the Little Missouri River, and on the 

 slopes and river terraces above the inner valley. It was taken 

 among clumps of dry grass and sage-brush. 



Phlibostroma quadriniaculatum (Thomas). — Bismark, Bur- 

 leigh Co., Aug. 9, 1885, I male, i female (collection Mich. 

 Agr. Coll.) ; Buford, July 23, 1920, 25 males, 8 females, i 

 juvenile male; Medora, July 30-Aug. 3, 1920, 20 males, 19 

 females, 3 juveniles; Amidon, Aug. 25-27, 1920, i male, 4 

 females. 



Common on the top and sides of a dry hill at Buford, among 

 clumps of grass and sage-brush. At Medora it was common 

 in similar situations, on the flood-plain and terraces. A single 

 female was taken at Amidon on a dry, grassy hillside in the 

 "breaks," and three specimens in a dry pasture near the town ; 

 two of the latter were in copula. 



Orphulella pelidna (Burmeister). — Devils Lake, July 20- 

 Aug. 16, 1920, 24 males, 8 females; Stump Lake, July 24, 1920, 

 8 males, 9 females; Bottineau, Aug. i, 1920, i female; Fargo, 

 Aug. 31, 1920, I male. 



This species was fairly common throughout the eastern part 

 of the state. It was taken in considerable numbers among the 

 sparse vegetation of grasses, liquorice, and other plants on 

 the dry sandy or stony fiats around the margins of Devils 

 Lake and Stump Lake, and was also common in the short 

 grass of dry pastures and the taller and denser grass of road- 

 sides and waste fields in the vicinity. The single specimen 



