PEOCEEDINGS, 1921 35 



It is particularly fond of alkaline g-round, especially for oviposition. A 

 species with migrator}' tendencies and flies freely. This species 

 migrated during August into sylvan, semi-sylvan and phytophilous 

 locations in search of food, but returned to the range for oviposition. 



Hippiscus sp. A gcopliiloiis cainpcstriaii. A typical geophilous cam- 

 pestrian distributed all over the open range and rarely extending into 

 semi-sylvan or phytophilous surroundings. 



Hippiscus (Xanthippus) latefasciatus Scudder. .\ phytophilous cain- 

 pcstrian. This large brightly coloured insect is one of the earliest to 

 appear in spring as it hibernates as a nymph. Commonly found on 

 warm bunch-grass flats along the river valleys. Occasionally found 

 on the upper range. 



Pardalophora tuberculata Beauv. Sciiii-syk'aii. A rare species, 

 taken occasionally in dry mountain meadows. 



Spharagemon aequale Say. A phytophilous caiiipcstriau. Collected 

 only on lower bunch-grass flats close to the rivers, where, in company 

 with Metator pardalinus, it did considerable damage to the grass. 



Metator pardalinus Saussure. A phytophilous cainpcstrian. Very 

 common on lower bunch-grass flats in company with Spharagemon 

 aequale. Rare on upper range. Both yellow and red winged forms 

 Vvere seen. 



Circotettix carlinianus Thomas. A geophilous cainpcstrian. Found 

 only on the dryest and barest parts of the upper range in small scattered 

 colonies. 



Circotettix lobatus Saussure. A sa.vicolous canipcstrian. Inhabits 

 the steep rock}- sides of ravines and the base of cliffs in warm locations 

 on the river slopes. 



Circotettix sufFusus Scudder. A sylvan species. This species was 

 most freqviently found in the Chilcotin district in sylvan locations, but 

 also inhabits semi-sylvan areas such as open clearings and road sides. 



Trimerotropis vinculata Scudder. A phytophilous cainpcstrian. 

 Found locally on dry exposed areas on lower river benches. 



Trimerotropis sp. A geophilous canipcstrian. A typical geophilous 

 species found commonly on the open range of the tableland. 



Acridinae 



Melanoplus atlanis Riley. A geophilous canipcstrian. Frequents dry,, 

 sandy grass lands on sheltered parts of the range. 



Melanoplus femur-rubrum DeGeer. .\ hiiniicolons hygrophile. Re- 

 stricted in the Chilcotin district to hay meadows and long rank grass; 

 avoiding very dry areas. 



Melanoplus bivittatus Say. Jilainly a scini-syhan species, adapted, 

 however, to a wide variety of conditions. It was found wherever there 

 was a thick growth of succulent vegetation, such as the borders of 

 streams, and also out on the open range in depressions where there was 

 a good covering of grass. 



