20 THE CANADIAN ENTOMOLOGIST. 



NOTES ON SOME ONTARIO ACRIDIID.T:.— Part IV. 



BY E. M. WALKER, TORONTO. 

 ( Continued from Vol. XXXI., page 36.) 



1 6a Spharagemon collare, Scudd., race Wyomingianum, Thomas. 



Oedipoda Wyomingianum , Thom. Ann. Rep. U. S. Geol. Surv. 



Terr., V. 462 (1872). 

 Spharagemon Wyomingianum, Scudd. Proc. Boston Soc. Nat- 



Hist., XVII., 470 (1875). 

 Spharagemon oculatum. Morse. Proc. Boston Soc. Nat. Hist.^ 



XXVI., 232 (1894). 

 Spharagemon collare, race Wyomingianum, Morse. Psyche, VII., 

 298(1895). 

 In September, 1899, I found this species fairly plentiful on sand 

 dunes, in Rondeau Provincial Park, Kent Co., on the shore of Lake Erie. 

 The sand dunes occupy a considerable area there, and in some places 

 near the lake shore are thinly wooded with red cedar (Juniperus virgin- 

 ianus). It is here that I found this locust in the largest numbers, though 

 they were also to be found further away from the shore in open places in 

 oak woods ; only, however, where the soil was sandy. In another part of 

 the Park, where the trees were mostly pines, S. bolli, Scudd. was common, 

 but I never found the two species together. In the juniper groves near the 

 beach, S. Wyomingianum was in company with Trimerotropis maritima 

 which occurred in great numbers, and was found also, and still more 

 abundantly, on the open beach, where S. Wyomingianum did not venture. 

 The hind tibia? of my specimens vary from pale yellow to orange, 

 none being decidedly red. They are dated Sept. 14 and 15, 1899. 



This is the first notice of this species in Ontario, and of the race 

 Wyomingianum in Canada. I have found the typical collare common 

 from Manitoba to British Columbia. 



Encoptolophus sordidus, Burm.— Until the last two or three years this 

 species was quite rare in Toronto, which was about its northern limit in 

 that part of Ontario. In the fall of 1897 1 savv quite a number in some of 

 the dry, sandy hillsides in High Park, and in 1898 they were much more 

 numerous, and were even seen about the city, in open grassy places. This 

 summer they were common everywhere, their crackling stridulation being 

 heard in almost every field. They have now extended to Lake Simcoe, if 

 not further, for I found them in small numbers, this summer, at De Grassi 

 Point. The species seems to be spreading northward. 



