22 G THE CANADIAN ENTOMOLOGIST. 



Mr. W. Hague Harrington read a paper on the " Nuptials of 

 Thalessa," describing the emergence and copulation of these the largest 

 of our Hymenoptera (Can. Ent., p. 206). 



Mr. Moffat read a suggestive paper on " Species and Varieties," 

 deprecating strongly the doing away with all names distinctive of well 

 marked varieties. 



Prof. Macoun agreed with Mr. Moffat that every variety should have 

 a name distinguishing it, and that much was lost if such was not the case. 



Rev. C. J- S. Bethune submitted a circular letter from Prof Alfred 

 Wailly, of England, asking for specimens of any silk moths or their 

 cocoons. 



Mr. Fletcher drew attention to an article which had appeared in the 

 August number of the Canadian Horticulturist, condemning the use of 

 Paris green as an insecticide. He considered that article inaccurate and 

 very injurious, as it might prevent the farmers from making use of this 

 most valuable remedy, and in confirmation of his opinion read a letter 

 from Prof. A. J. Cook describing experiments with Paris green, and 

 proving that no ill effects could result from eating potatoes or fruit upon 

 which it was used in the ordinary manner for the prevention of insect 

 attacks. 



Mr. Harrington submitted a note on " Further Observations on 

 Oryssus Sayi," in which attention was also drawn to a clerical error in 

 paper on that insect in the May number of the Entomoi-GGIST. 



A vote of thanks was unanimously ordered to be conveyed to the 

 Mayor and City Council for the use of the council chamber and com- 

 mittee room in the (Jity Hall for the meetings of the Society. 



The meeting adjourned at 6 p. m., sine die. 



W. Hague Harrington, Secretary f>ro tcin. 



HISTORY OF THE PREPARATORY STAGES OF COLIAS 



ALEXANDRA, Edw. 



BY W. H. EDWARDS, COALBURGH, W. VA. 



EGG. — Fusiform, thick in middle, tapering both ways, the base a little 

 broader than the summit ; some examples have the side convex from 

 middle to either end, but others have the upper half a little incurved ; 

 ribbed longitudinally, the number of ribs sixteen, three or four of which 



