STRIPED SrERMOPHILE. 



45 



Table showing contents of 80 stomachs of the Striped Prairie SjiermophUe 

 (Sjpermophilus tridecemlineatus) — Continued. 



Sex. 



$ im. 

 $ im. 



9 

 9 

 d 

 9 



cT 

 <f 



d" 



9 



cf 



9 



9 

 9 

 9 



Date. 



1887. 

 Sept. 6 



Sept, 14 



Sept. 16 



Oct. 5 



1888. 

 May 21 

 May 21 

 May 23 

 May 25 



June 28 



July 3 



July 16 



Aug. 20 



Aug. 21 



Aug. 21 



1892. 

 July 12 

 July 12 



July 12 

 July 26 

 Aug. 2 

 Aug. 16 

 Aug. 17 



Aug. 23 

 Aug. 23 



Aug. 23 

 Aug. 23 

 Aug. 23 

 Aug. 31 

 Aug. 31 



Aug. 31 

 Aug. 31 

 Aug. 31 



Aug. 31 



Locality. 



Fort Buford, N. Dak . 



do 



do 



Dawson County, Mont. 



Pierre, S. Dak. 



do 



do 



do 



Buffalo Gap, S. Dak. 



do 



Custer, S.Dak 



Cheyenne, Wyo 



.do 



.do 



Golden City, Mo. 

 do 



do 



Belle Plaine, Kans. . . 

 Garden Plain, Kans . 

 Wichita Falls, Kans. 

 do 



"Washburn, Tex 

 do 



do 



do 



do 



Kiowa, Kans 

 do 



.do 

 .do 

 .do 



.do 



Percent- 

 age of 

 animal 



matter. 



40 



90 

 25 

 50 



50 

 10 

 20 

 20 



100 



95 



50 



25 



25 

 50 



20 

 30 



40 

 100 

 75 

 75 



100 

 50 



90 

 100 

 60 

 40 

 50 



20 

 100 

 50 



Percent- 

 age of 



vegetable 

 matter. 



Contents. 



Insects; green herbage; 10% in- 

 determinate matter. 



Mostly grasshoppers ; a few Heli- 

 anthus seeds. 



Grasshoppers ; green foliage ; 

 Helianthus seeds. 



Grasshoppers; seeds of Helian- 

 thus and of probably Mammi- 

 laria. • 



Grasshoppers; wheat. 

 Insects; seeds; herbage. 

 Grasshoppers; grain; herbage. 

 Grasshoppers ; Polygonum 

 seeds. 



Grasshoppers ; perhaps other in- 

 sects ; 1 small feather. 

 Insects; crickets; 4 species of 



beetles; vegetable matter. 

 Grasshoppers; other insects; 



seeds; other vegetable matter. 

 A few grasshoppers; 1 black 



beetle ; Chenopo&ium seeds ; 



green stuff. 

 Grasshoppers ; 1 larva or pupa ; 



indeterminate herbage and 



seeds. 



1 ant; 1 small beetle; grasshop- 

 pers ; Ohenopodium remains ; 

 other plants and seeds. 



"Wheat and small beetles. 

 A grasshopper ; flu w r ers and herb- 

 age. 



A grasshopper and wheat. 

 1 large grasshopper and its eggs. 

 Grasshoppers; beetles; wheat. 

 Grasshoppers and seeds. 

 Grasshoppers ;1 cricket; purslane 

 leaves. 

 Do. 



Grasshoppers and oatmeal (used 

 for trap bait). 

 Do. 



Grasshoppers. 



Grasshoppers and cactus fruit. 

 Insects and seeds. 

 Grasshoppers ; small insects and 

 seeds. 



Small insects and seeds. 

 Grasshoppers. 



Grasshoppers; other insects, and 

 seeds. 



Grasshoppers; small beetles; lar- 

 vae of insects ; seeds. 



The following tables show that the contents of the cheek pouches 

 differ widely from those of the stomachs, many things being eaten 

 that are never stowed away in the pouches. For instance, more than 

 half of the stomach contents consisted of insects, while no insects were 

 found in the cheek pouches, the latter invariably containing nothing but 

 seeds. This is what might be expected, as the food laid up for winter 

 is carried in the cheek pouches. 



