104 THE CANADIAN ENTOMOLOGIST. 



NOTE ON CTENUCHA CRESSONANA. 



BY A. RADCLIFFE GROTE, HILDESHEIM, GERMANY. 



In the Catalogue of the Lep. Phalaense, p. 5 28, this species is 

 incorrectly referred to C. venosa. The specimens there recorded are 

 probably all C. venosa, at least those from my collections are. Mr. Geo. 

 Francke sends me two fresh specimens of C. Cressonana. In these, as 

 stated in my original description, Proc. Ent. Soc, Phil., June, 1863, the 

 third stripe of C. venosa is wanting. The stripes on cubitus and branches 

 and along anal region of primaries may vary from white (as I described 

 them) to yellow, and the costa may be yellow (in the first instance) or red. 

 For the yellow-striped form with red costa I propose the name var. hitea. 

 The fringes in C. Cressonana are entirely white, and I was careful to 

 point out other differences from C. venosa, which should not have been 

 overlooked by the author of the Catalogue above referred to. 



ON THE USE OF EUPETHECIA. 



BY A. RADCLIFFE GROTE, HILDESHEIM, GERMANY. 



In reference to a recent " protest " in the pages of the Can. Ent. 

 (Vol. XXXIII. , p. 263) against a change in the generic name Enpcthecia, 

 I believe its abandonment, in favor of a Hiibnerian name chosen cut of 

 the Verzeichniss by Mr. Meyrick, to be invalid. I retain it myself in the 

 collection here for the reason that its date is certain, and there is a rule of 

 the German zoological code that if exact dates cannot be ascertained (and 

 this is the case for that part of the Verzeichniss which contains the 

 Geometrids), preference shall be given to the genus which has a type 

 cited. This is reasonable, and custom has correctly sanctioned the use of 

 Eupethecia. I am indebted to Mr. L. B. Prout, of London, England, for 

 the information that Curtis himself, in founding the genus Eupethecia, 

 explicitly chooses absinthiata, L., as type of the genus, April 1, 1825. In 

 my study of the Geometrid genera (1S95-96), only a fragment of which 

 appeared in the Transactions of the Entomological Society of London, I 

 pointed out some of the errors into which I have reason to believe Mr. 

 Meyrick has fallen. I express here no opinion as to the use of Phahena 

 as a generic title, but, if used, I believe its restriction by Fabricius in Gen. 

 Ins. Mant., 1777, would give prosopiaria, L., as type. The European 

 papilionaria is the type of Terpne, Hiibner, 1806. I have not found the 

 type of Geometra. I believe we must keep Eiipethecia for the " pugs." 



