20 Proceedings, 1922 



more numerous than the females and were very active, running on the 

 ground with considerable speed. On several occasions from three to five 

 males were observed following a female. In each case the female was 

 hopping while the males were running rapidly behind, stopping occasion- 

 ally to stridulate. 



Locality records. Ycnion, 1895 (J. Fletcher). Osoj'oos, Fairview, 

 Westbaiik, 1919 (E. R. Buekell). 



Mecostethus lineatus Sejidder, 1862. The Striped Sedge Locust. 



Seudder, Samuel H. Bost. Jour. Nat. Hist. VII, p. 462 (1862). 



A few specimens of this species were found in company with Meco- 

 stethus gracilis Seudder in the Chilcotin District during the summer of 

 1921. They were found in a small beaver-meadow among the tall wild 

 grasses and rushes wliich had grown up around the area flooded by the 

 beavers. 



Locality records. Chilcotin, 1921 (E. R. Buekell). 



Mecostethus gracilis Seudder, 1862. The Northern or Graceful Sedge 

 Locust. 



Seudder, Samuel 11. Bost, Jour. Nat. Hist. VII, p. 463 (1862). 



This species was fairly common in the swamps and beaver-meadows 

 in the Chilcotin District, and a fair series was collected. The females 

 are sluggish, heavy bodied insects and were rarely seen to fly, they 

 ijsually slipped down among the vegetation and hid when approached, 

 and they were found among the thick soft grass on land not actually 

 flooded with water. The males on the other hand are trim, active insects 

 and were often heard uttering their distinctive chirruping notes (re- 

 sembling schirrup — schlip-schlip-schlip) far out in the beaver-meadows, 

 where a thick growth of water-loving plants grew up, through several 

 feet of water. This species was also found in damp locations in hay 

 fields and in the vegetation boi-dering streams. The notes of the male 

 are loud, distinctive, unvarying, and quite unlike the call of any of our 

 other Britisli Columbia Orthoptera. 



Locality records. Chilcotin, 1920-21 (E. R. Buekell). 



Chorthippus Series. 



Chorthippus oregonensis Seudder, 1899. 



Seudder, Samuel H. Proc. Amer. Acad., XXXV, p. 50 (1899). 



and 



Chorthippus curtipennis Harris, 1835. The Meadow Locust. 



Harris, Thaddeus W. Cat. Ins. Mass., p. 56 (1835). 



During the past three years a number of species of Chorthippus 

 have been collected by the writer in different parts of British Columbia 

 and these were submitted to Mr. J. A. G. Rehn for examination. It would 

 appear that British Columbia is an area of intergradation between two 

 'geographic races.' Mr. Rehn says " Chortliippus curtipennis and Cher- 



