86 " THE CANADIAN ENTOMOLOGIST. 



The ovipositor is of special interest, as it differs remarkably from 

 chose of other Uroceridas. Usually it is not visible, as when retracted 

 the tip is concealed in a deep cleft in the terminal segments. It has the 

 appearance, as stated by Norton, of springing from the last segment, but 

 it is evidently attached much nearer the base of the abdomen, and is 

 protruded from beneath a small ventral scale which is apparently a 

 portion of the fifth segment. It is very slender, hair-like, and nearly 

 twice as long as the insect, and must consequently be coiled within the 

 abdomen in a manner somewhat similar to that of Ibalia. Norton says 

 it is ordinarily concealed in a channel beneath the abdomen ; Brulle, and 

 other authors, as rolled spirally within it. 



The insects are very lively in their motions, running actively to and 

 fro, and always on the alert. They have at such times a marked resem- 

 blance to some species of wasps, and might be easily classed as such by 

 casual observers. When disturbed they dart swiftly away, but will 

 generally be found sliortly afterwards near the same spot, so that one 

 may frequently, with a little patience, succeed in capturing them, even if 

 they have been missed at the first attempt. 



In conclusion I will recapitulate what I have been able to learn of 

 our Canadian species. Its range embraces a vast extent of country, 

 from ocean to ocean, and apparently far northward. 



O. Sayi, Westwood. — Ottawa, Sudbury, Nova Scotia. 



var. terjumalis, Newman. — Ottawa, Quebec, Vancouver Island, 

 var. affinis, Harris. — Ottawa, Vancouver Island, 

 var. occidentalism Cresson. — Ottawa. 



Breeds in dead, or old decaying sugar maples, and appears in June. 



ADDITIONS TO LIST OF MONTREAL LEPIDOPTERA. 



BY G. J. BOWLES, MONTREAL. 



During the years 1875, 1876 and 1877, Mr. F. B. Caulfield published 

 in the Canadian Entomologist lists of the Lepidoptera occurring at 

 Montreal and vicinity, as far as the end of the Bombycid^e. Since that 

 period the following species have been taken here, and are now added so 

 as to make the list as complete as possible to date. Chateauguay is on 

 the south shore of the St. Lawrence, directly opposite the upper part of 

 the Island of Montreal, and only a few miles distant. 



