30 Proceedings, 1922 



Melanoplus flabellifer Scudder, 1879. 



Seudder, Samuel 11. Proc. Bost. Soe. Nat. Hist., XX, p. 68 (1879). 



This species was taken in considerable numbers in the Chilcotiu 

 River Valley on a sage-brush flat. Mr. Morgan Ilebai-d, who kindly 

 determined this species for me, says: "It is a common Great Plains 

 species but very interesting from your region. I have taken it on the 

 summits of the Colorado Rockies." 



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



Melanoplus bruneri Scudder, 1897. Bruner's Locust. 



•Seudder. Samuel II. Proc. Amer. Phil. Soc, XXXVI, p. 19 (1897). 



A very common species on the cattle ranges in the Chilcotin District 

 during the summers of 1920 and 1921. It was found most plentifully in 

 the long grass bordering clumps of Aspen Poplars and in grassy depres- 

 sions on the open range. 



Locality records. Spilmacheen, 1897 (S. Henshaw). Big Bar, 

 Alkali Lake, Williams Lake, Chilcotin, 1920-21 (E. R. Buckell). 



Melanoplus mexicanus bilituratus F. Walker, 1870. 



Walker, Francis. Cat. Derm. Salt. Brit. Mus., IV, p. 679 (1870). 



The similarity to the next "geographic race" makes it difficult to 

 determine the validity of some of the records of this insect and it is 

 hoped that further collecting will show more clearly the range of this 

 race in British Columbia. 



Locality records. Victoria, Vancouver Island; Sicamous, 1897 (S. H. 

 Scudder). Donald, Vernon, Kelowna, Duncans, Nanaimo, Riddle, Van- 

 couver Island, 1901 (J. Fletcher). 



Melanoplus mexicanus atlanis Thomas, 1873. The Lesser Migratory 

 Locust. 



Thomas, Cyrus. Syn. Acrid. N. Amer., p. 22 (1873). 



This "geographic race" is very common in British Columbia and 

 has caused serious damage to cultivated crops on a good many occasions. 

 It is very variable in size and wing length in British Columbia. 



Melanoplus affinis and Melanoplus spretis have occasionally been 

 recorded from British Columbia in the past, but it is considered probable 

 that these were varieties of Melanoplus mexicanus atlanis. In the case 

 of spretis it was probably an example of the optimum migratory con- 

 dition developed in atlanis. 



Locality records. Vancouver, 1880 (S. H. Scudder). Agassiz, Ver- 

 non, Kelowna, 1901 (J. Fletcher). Cranbrook, Nelson, Greenwood, Kam- 

 loops, 1906 (W. J. Alexander). Beavermouth, 1906 (Prof. S. Brown). 

 Kaslo, 1913 (A. N. Caudell). Osoyoos, Bridesville, Rockcreek, Fairview, 

 Vaseaux Lake, Okanagan Palls, Summerland, Pentieton, Westbank, 

 Peachland, Kelowna, Okanagan Centre, Okanagan Landing, Vernon, Arm- 

 strong, Enderby, Mara, Sicamous, Salmon Arm, Tappen, Notch Hill, 



