THE CANADIAN ENTOMOLOGIST. 109 



Michabo. (By the way, if students would only take the trouble to refer 

 to back numbers of the Can. Ent., as well as other American publica- 

 tions, some articles would not be necessary ; it is some excuse if the older 

 illustrated works are not at hand, or foreign books, but none if American 

 publications issued within the last 20 years are not gone over by new 

 students). I must therefore strongly protest against Arctia Michabo being 

 cited as an aberration of A. Arge, while I leave its relationship to A. 

 Dione to be settled by those in the possession of the necessary material. 

 In the meantime A. Michabo must be considered a good species, being 

 larger than A. Arge, and nearer A. Virgo. Mr. Dodge will no doubt be 

 able to furnish material to bear out my views. The unnamed aberration 

 of Arge which I gave Mr. Neumoegen differs from the typical form in the 

 fore wings being black, the veins alone broadly flesh color, so that the 

 moth has something the look of a species of Seirarctia. 



Arctia Nevadensis G. & R. 



This species I refer to merely to state that if Mr. Hy. Edwards' Iii- 

 corrupta is a form of the same species, even if more " typical," the above 

 name, being much the oldest, must stand for the whole species, and our 

 designation used only for the variety. When species are first collected it 

 does not usually happen that they are brought in such quantities that in so 

 variable a genus as Arctia the " ground form " can be ascertained and 

 described. But it is positively certain that whether the first description 

 cover the more usual or commoner form or not, the name so proposed 

 must stand for the whole species, in future and when its limits are more 

 accurately known. Any other course would be manifestly unjust and 

 cause confusion. The species should therefore stand as A. Nevadensis G. 

 & R., with its varieties A. Ochracea Neum., and A. Incorrupta Hy. Edw., 

 as well as A. Nevadensis G. & R., for the special form illustrated by us, 

 although I could see no strong differences. Upon one or two other points 

 suggested by Mr. Neumoegen's paper, I could say a word, but the whole 

 genus will soon be better known, and these minor points may well wait. 



But I may conclude these remarks with a general observation on the 

 species of Arctia described by myself from time to time during the past 

 twenty-five years, since the genus contains very variable species and my 

 own have been subject to frequent criticism. 



