THE CANADIAN ENTOMOLOGIST 193 



male genitalia, would lead to considerable alteration in the sequence 

 of species within the genera (especially such bulky ones as Polia, 

 Hade?ia, Acronycta, etc.) The only two genera on which we ex- 

 pended more than the usual amount of time and attention were 

 Euxoa Hbn. and Catocala Schr.; our arrangement of species in 

 this latter genus is vastly different from that given by Hampson 

 and is based upon work done for the American Museum of New 

 York in connection with a forthcoming Memoir on the Catocala 

 moths; in the genus Euxoa we had studied rather exhaustively the 

 male genitalia and based the specific synonymy on a comparative 

 study of the genitalia of specimens which we had matched with 

 type specimens in the various museums; very possibly some altera- 

 tion in the sequence of species may be necessary, but (rightly or 

 wrongly as the case may be) we believe that the synonymy is 

 largely correct. 



A few notes on some of the species which Mr. Dod discusses 

 may be of value as giving our standpoint in the matter; we shall 

 only touch on those species concerning which we are inclined to 

 dififer from Mr. Dod or about which we are still doubtful. 



Arctia ohliterata Stretch is not definitely known to us; we 

 based our reference to ornata on the strength of the red secondaries 

 and the figure given in Jour. N. Y. Ent. Soc, XIV, PI. VI, Fig. 

 14, which looks rather like a specimen of edwardsi Stretch with re- 

 duced banding on primaries. We had never heard of any tendency 

 in turbans to show red secondaries but if, as would appear from 

 Mr. Dod's note, he possesses a specimen with secondaries of this 

 colour his association would probably be more correct than our 

 own. 



Euxoa relaxa Sm. Our reference of this species to septen- 

 trionalis Wlk. is based on a study of the genitalia of the type male 

 from San Francisco in the National Museum. The genitalia of 

 septentrionalis are very characteristic and strikingly different from 

 thost of messoria with which it superficially agrees very closely; 

 the salient features of the genital structure could be seen on the 

 type of relaxa without removing the abdomen, and seemed to us 

 to be identical with that of septentrionalis. 



Euxoa campestris Grt. We are not surprised that Mr. Dod 

 questions the correctness of separating this species from dedarata 



