Occasional Papers of the Museum of Zoology 23 



Hippiscus Jialdcuianii ( Scudder).^" — Aniidon, Aug. 23, 1920, 

 I female; ? Aug. 25, 1920, i juvenile. 



A single female was taken on the grassy uplands near Ami- 

 don. A nymph taken two days later is placed here merely 

 because it resembles this species more than it does Metator 

 pardalinnui. these being the only two species of this group 

 which were found in the region. 



Hippiscus apiculatus (Harris). — Devils Lake. Mav TI-18, 

 1921 (X. A. ^^'ood), I male, i female. 



Taken on the sparsely vegetated, sandy flats around the 

 shore of Devils Lake. By the middle of Julv this species 

 had entirely disappeared. 



Metator pardali)iuin (Saussure). — Buford. Julv 23. 1920, i 

 male, 4 females; Medora. July 29-Aug. 3, 1920. 2 females; 

 Amidon, Aug. 22-28, 1920, 7 males, 3 females. 



At Buford this species was found among sage-brush and 

 scattered xerophytic vegetation on dry hillsides, and in dr\-, 

 grassy situations on the blullfs above the valley ; at Medora 

 it was taken in similar habitats. It was onlv moderatelv com- 

 mon at Amidon, where it occurred on the grassy uplands, 

 always where there was a considerable amount of bare soil 

 exposed among the scanty vegetation. 



Dissostcira Carolina (Linnaeus). — Devils Lake, Aug. 8-26, 

 1919, 3 females: July 19-Aug. 16, 1920. 14 males, 5 females; 

 Stump Lake, July 24, 1919, i female ; July 24-25. 1920. 4 males ; 

 Sheyenne River, Eddy Co., Aug. 8, 1920. 3 males, i female; 

 Lake Upsilon, Turtle Mountains, July 30-Aug. 6. 1920, 8 

 males ; Bottineau, Sept. 12, 1920 (A. H. Eastgate). i female; 

 Fargo, Aug. 31, 1920, i male; Buford, July 2^, 1920. 8 males, 

 6 females; Williston, July 24, IQ20, 18 males, 13 females; 



^■' Determination verified by J. A. G. Rehn. 



