132 THE CANADIAN ENTOMOLOGIST. 



represent that body, at this your looth anniversary, and to convey, for the 

 Society, its hearty congratulations and good wishes for your continued 

 prosperity and success. 



It will perhaps not be out of place tor me to call attention at this 

 time to the fact that this sister society, but four years the junior of the 

 Entomological Society of Philadelphia, afterwards the American Ento- 

 mological Society, expects, next year, to celebrate its 50th anniversary. 



We, who have had the good fortune to attend the meetings of this 

 Society across the border, cannot easily forget the cordial greeting and 

 warm comradeship we have always enjoyed^ and we all the more appreciate 

 the hearty God-speed which I am expected to convey to you. Not only 

 have our colleagues done a grand work in Canada, but the pages of the 

 Canadian Entomologist have been as freely open to us as to their own 

 numbers. 



Insects know no national boundaries, therefore those who study them 

 must be equally cosmopolitan in their investigations. So, also, science 

 knows no race, nationality or creed, because it deals with the universal, 

 and in recognition of this, my message becomes all the more appropriate. 



F. M. Webster. 



ON THE LARVAL STAGES OF CERTAIN ARCTIAN SPECIES. 



BY WM. BARNES, M.D., AND J. MCDUNNOUGH, PH D., DECATUR, ILL. 



A. pkyllira Drury. 



In a previous article (Can. Ent., XLIII, 257), we described the final 

 larval stage of.this species. Since then we have been successful in breed- 

 ing from the egg, and append our notes on the various stages. Packard 

 has already described the larval history (Jour. N. Y. Ent. Soc, III, 178)» 

 but rather briefly, so that we feel justified in publishing our own account 

 as a verification and amplification of Packard's. It has been suggested 

 \.\\3.\. phyllira is but a variety of reciilinea or vice versa. We would call 

 attention to the fact that in phyllira larvae the spiracles are orange, whilst 

 in rectiH?iea, according to Gibson (Can. Ent., XXXV, 117), they appear 

 to be black ; this would seem to suggest that we are dealing with distinct 

 species. All our bred specimens showed (apart from slight increase or 

 decrease in the heaviness of the white markings), very little tendency to 

 variation, and in no case could we detect a specimen with traces of white 

 markings on the veins in the outer portion of the wing ; phyllira normally 

 possesses a slight white dash on the subcostal vein and occasionally one 

 on the cubitus near base of wing, as figured by Drury, but beyond this 

 the veins are not outlined with white. The white markings on the veins 



Mav, 1912 



