' t 1 



flit Caiiiuliiin ftntomnloifibt. 



Vol. XXXV. LONDON, JUNE, 1903. No. 6 



NOTES 0,V CANADIAN SPECIES OE THE GENUS APAN- 



TESIS (ARCT/A), WITH SPECIAL REFERENCE 



TO THE LARV.-4:. 



BY ARTHUR GIBSON, DIVISION OF ENTOMOLOGY, CENTRAL EXPERIMENTAL 



FARM, OTTAWA. 



(Continued from page 123.) 



9. QuENSELii, var. turbans. — Probably one of the most interesting 

 surprises we have had since studying these insects, is the fact that the 

 form just mentioned has been taken, and not uncommonly, for some 

 seasons, at several points in Manitoba and the Northwest Territories. 

 The first specimens we examined were collected "at light" at^Calgary, by 

 Mr. T. N. Willing. Afterwards Mr. F. H. WoUey-Dod, of Millarville, 

 Alta., forwarded us a beautiful series of nine specimens for study, and 

 Mr. Norman Criddle, of Aweme, Man., also was good enough to send us 

 four examples. Besides these 13, Mr. Willing forwarded seven specimens. 

 While in Washington, in December, 1902, Dr. Fletcher submitted a series 

 of the moths to Dr. Dyar, who compared them with the original descrip- 

 tion of turbans, afterwards expressing himself as certain that our 

 Northwestern form was this variety of quenselii. 



The 20 specimens before me are fairly uniform, and have a wing 

 expanse of 26-35 mm. None of them show any traces of spots or 

 markings on the secondaries other than those shown in the specimens on 

 the accompanying plate. The markings on the primaries vary chiefly in 

 width, but the three specimens figured give a good idea of the moth. 

 Only one specimen shows any departure, and in this, as will be seen by 

 the photograph, there is a decided tendency to melanism, but only, 

 however, on the primaries. The secondaries of all the males, excepting 

 two, are distinctly yellow, the same colour as virgiinciila, and the 

 marginal markings are remarkably uniform and distinct, with no tendency 

 whatever to melanism. The hind wings of the females are likewise 

 yellow, with the exception of those of two specimens which are orange, 



