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Vol. XXXVI. LONDON, DECEMBER, 1904. No. 12 



NOTES ON THE LOCUSTID^ OF ONTARIO. 



BV K. M. WALKER, B. A., M. B., TORONTO. 



(Continued from page 330.) 

 Sub-family CONOCEPHALINyE. 

 7. CoNOCEPHALUS ENSiGER, HaiTis. The Sword-bearer. 



Cojiocephalus ensiger, Harr. Ins. Inj. Veg., 1862, 163. 

 Measurements : Length of body, ^ 26.5 mm., $' 29 mm.; of pro- 



notuntl, ^ 7.5 mm.; 9 6.7 mm.; of hind femora, ^ 20.5 mm., ? 21.5 

 mm.; of tegmina, ,5 41 mm., $ 46 mm.; of ovipositor, 32 mm. 



This is a very common insect in Ontario, ranging northward about as 

 far as Muskoka and the Bruce Peninsula. It frequents fields, vacant lots 

 and roadsides, which resound at night with the incessant monotonous 

 song, during late summer and autumn. 



Scudder describes this song as composed of a succession of sounds 

 like '• c/nvi," emitted at the rate of about five per second. He states that 

 it stridulates only at night or during cloudy weather, but I have occasionally 

 heard it in bright sunshine, in the afternoon. It is the most easily 

 approached of all our locustarijins while thus engaged, and is in fact 

 difficult to find in any other way ; hence the females are but seldom seen. 



Although this grasshopper usually perches upon tall weeds, I have 

 occasionally traced its song to a tree or vine^ the insect being sometimes 

 stationed at a considerable height. 



I have taken but one brown individual, a female captured at Toronto, 

 Oct. I, 1893. 



Localities: Rondeau, Kent Co., Sept. 14, 1899; Leamington, Aug. 

 7, 1901 ; Sarnia, Aug. 16, 1901 ; Goderich, Aug. 19, 1901 ; Burke Id., 

 Lake Huron, Aug. 27, 1901 ; Niagara River, Sept. 26, 1898; Toronto, 

 Aug.-Nov.; Lake Simcoe, Aug.-Sept.; Bracebridge, Muskoka (heard), 

 Se|)t. 1 1, 1900. 



S. CoNOCEPHALus Nebrascensis, Bruner. The Nebraska Cone- 

 head, 



ConocepJialus N'ebrascensis, Bruner, Can. Ent., XXIIL, iSyi, 72, 



