THE CANADIAN ENTOMOLOGIST. 99 



type o{ Hyloiais) nor can I find an Hubnerian genus for its reception. 

 I should leave it in Phkgethontius, as Fernald seems to suggest, but it 

 differs in the 1 2-veined primaries, etc." It is, perhaps, proper for me to 

 say that in my studies of the venation of the Sphingidce^ I found that the 

 species of this family, so far as I had material to study, had either eleven 

 or twelve veins in the fore wings according to whether vein lo was 

 present or wanting. This vein arises from 9, near its outer end, and lies 

 so close to it as to be easily overlooked. After denuding a long series, 

 including many individuals of some of the species, I found that while the 

 other veins were constant as to origin and termination, vein 10 is very 

 variable and not to be relied upon, for in some examples it was present 

 in one wing but absent in the other. It seems to differ as to the point of 

 origin, sometimes arising from vein 9 at some distance from the border 

 of the wing, at other times nearer the border, again close to the border, 

 and again it was entirely wanting either in one wing or both j all in the 

 same species. In my essay on the Sphingidce, I stated that it was very 

 doubtful if this vein would prove of any assistance in classification. I 

 still hold to the opinion that this species will finally gravitate into the 

 same genus as celeus. Finally the generic name Atreus is pre-occupied, 

 having been used by Hoch in 1837 for a genus of Scorpions, and there- 

 fore cannot be used in this connection. 



Cerisii is placed by itself in the subgenus Copismerinthus, and 

 geminatics under the subgenus Eustnerhithus, with the variety triparti- 

 tus Gr., given for those individuals which have three blue spots on the 

 black anal patch on the hind wing. 



Prof Grote divides the time of the work on our lepidoptera into three 

 periods : The first including that of Abbot, Boisduval, the elder LeConte, 

 Say, Peck, Harris, Gosse, Kirtland, and their historian, Dr. J. G. Morris. 

 The second period, the one which he calls the " Renascence," is the 

 period in which the American Lepidopterists catalogue the different 

 families of the lepidoptera and thus lay the foundation for present and 

 future discoveries. This period, which came to an end with the appear- 

 ance of Grote's New Check List, " was a time during which a great deal 

 of work was performed with good humor and at considerable self- 

 sacrifice," and no one did his share of this work, which was more or less 

 drudgery, more cheerfully than did Mr. Grote himself. 



The author says that the writings of our entomologists have a flavor- 

 ing of the localities from which they emanate, thus, '• in some way the 



