44 



SPERMOPHILES OF THE MISSISSIPPI VALLEY. 



Table shoiving contents of 80 stomachs of the Striped Prairie Spermophile 

 (Spermopliilus tridecemlineatus) — Continued. 



Cat- 

 No. 



19 



20 



21 

 53 



55 



62 



81 



84 

 100 

 103 

 109 

 112 

 115 

 116 

 125 



Sex- 



126 



? 



127 



d 



139 



d 



143 



9 



144 



d 



145 



d 



149 



9 



152 



d 



162 



d 



163 



9 



170 



d 



179 



9 



185 



d 



186 



9 



194 



cf 



203 



d 



206 



9 



207 



d 



211 



9 



212 



9 



216 



d 



221 



9 



224 



9 



232 



9 



242 



9 



259 



d 



265 



d 



Date. 



1887. 

 May 27 



May 27 



May 27 

 June 9 



June 9 



June 11 

 June 24 



June 27 



June 30 



July 



July 



July 



July 



July 



July 



July 



July 8 



July 18 



July 18 



July 18 

 July 18 

 July 22 

 July 23 

 July 25 

 July 26 



July 26 

 July 28 



July 28 

 July 28 

 July 30 



Locality. 



Aug. 2 

 Aug. 8 



Aug. 10 

 Aug. 12 



Aug. 12 



Aug. 13 



Aug. 15 

 Aug. 16 



Aug. 23 



Aug. 24 

 Aug. 29 



Sept. 6 



Flandreau, S. Dak 



do 



do 



Ortonville, Minn. 



.do 



.do 



Browns Valley, Minn 



do 



do 



do 



Travare, S. Dak 



do 



do 



do 



do 



Browns Valley, Minn . 



Travare, S.Dak 



Grand Forks, N. Dak. 

 do 



do 



do 



Pembina, N. Dak 



do 



do 



do 



Percent- 

 age of 

 animal 



matter. 



do 



do 



do 



do 



Devils Lake, N. Dak . 



Bottineau, N. Dak. 



Fort Buford, 2T. Dak. 



50 



4 



100 



GO 

 25 



50 



90 



100 

 100 



100 

 100 



100 

 50 



90 



100 

 50 



80 



Percent- 

 age of 

 vegeta vie 

 matter. 



50 



70 

 50 

 50 

 75 

 70 

 100 

 100 

 50 



10 



20 



Contents. 



Beetles and other insects ; seed 

 pulp, and hulls. 



About 18 coleopterous larvae; 

 grain ; herbage. 



Some small cocoons; seed shells. 



Beetles; grasshoppers; caterpil- 

 lars ; vegetable matter. 



Coleopterous and other larvae; 

 grain; vegetable matter. 



Particles ot insects ; dirt. 



Grasshoppers ; trace of beetles ; 

 some remains of grain. 



A few bits of ants and other in- 

 sects ; herbage, and grain shells. 



Grasshoppers ; beetles ; larvae ; in- 

 sect eggs ; seeds ; herbage. 



Grasshoppers ; beetles ; ground-up 

 seeds. 



Pieces of 3 larvae of insects; 

 grasshoppers, and grain. 



Grasshopper ; vegetable fiber, 

 and seed pulp. 



Beetles ; grasshoppers ; grain ; 

 herbage. 



Beetles ; grasshoppers ; shells and 

 pulp of seeds. 



Grasshoppers ; caterpillars ; trace 

 of beetle; bark or roots. 



Grasshoppers; beetles; seeds of 

 Polygonum. 



Grasshoppers ; crickets ; other 

 insects; grain; roots. 



A little finely chewed wheat or 

 oats. 



A few bits of oat hulls and skin 

 of grains. 



Bits of small insects and seeds. 



1 grasshopper; oats. 



Insects, mostly grasshoppers. 



Grasshoppers; wheat. 



Insects; wheat. 



Grasshoppers ; finely chewed 

 seeds. 



Grasshoppers ; a little grain. 



Hair of Spermophilus tridecem- 

 lineatus and some indetermin- 

 ate matter. 



Insects; ants; small beetles; 

 pupae of ants(?). 



Insects only; mostly grasshop- 

 pers. 



Mostly grasshoppers ; some vege- 

 table matter. 



Insects, mostly grasshoppers. 



Crickets; small beetles; grass- 

 hoppers. 



Insects ; wheat ; some small seeds. 



Mostly grasshoppers ; grain ; her- 

 bage. 



Insects ; grasshoppers ; ants ; 

 herbage. 



Grasshoppers; hair; grain; herb- 

 age. 



Insects, mostly grasshoppers. 



Grasshoppers ; other insects, 

 grain ; herbage ; Solarium seeds 

 and berries. 



Insects; grasshoppers; ants; 

 small beetles ; larvaB ; 1 feather ; 

 hairs ; vegetable matter. 



Grasshoppers. 



A few insects; hairs; indeter- 

 minate vegetable matter. 



Mostly grasshoppers; seeds of 

 Helianthus and Chenopodium. 



