Hagen.] 174 [December 27, 



Hab. West of Mississippi to the Pacific ; south to Texas ; 

 north to New N". and S. Wales, west from Hudson's Bay between 

 53° and 63°. (Strecker Rhop., p. 132.) 



2. C. Philodice. 



Seasonal form mimicking Ariadne in Texas. 



Northwestern forms Eriphyle and Chrysomelas. 



Synon. Anthyale Hb. ; Santes A. Fitch. 



Hab. East of Mississippi, overlapping the river to Kansas, and 

 south to Dallas, Texas ; south to West Virginia, and from Mary- 

 land northwards to Canada ; along the northern border in Dakota 

 reaching Eriphyle in Western Montana ; Washington Territory 

 to California. 



Mr. Chas. V. Riley has kindly sent me a detailed letter written 

 by him to Mr. W. H. Edwards, June 29, 1876. In this letter is 

 stated the opinion that C. eurytheme and C. philodice are specifi- 

 cally not different. This opinion is proved by very full and 

 detailed descriptions of the egg and all stages of the caterpillar. 

 Mr. W. H. Edwards has apparently overlooked this letter which 

 contains more detailed descriptions than those given by himself. 



3. C. interior. 



Should the type in Dr. Boisduval's collection belong to this 

 species, which is yet at least not proved, the name C. Pelidne Rd 

 should be accepted. 1 



Synon. Edwardsii, with Emilia and Astraea, Alexandra, 

 Scudderi, Occidentalis, Christina, var. Harfordii, var. Laurentina. 



The assumption that C. Pelidne Bd. is synonymous with C. inte- 

 rior is rather impaired by the fact, that in none of the countries 

 quoted by Boisduval for C. Pelidne, Greenland, Iceland, Labra- 

 dor, Siberia, Kamtchatka, has C. interior yet been found. The 

 C. Pelidne from Labrador quoted by Mr. Strecker belongs to 

 Palaeno and not to C. interior. 



The range of C. interior is known from Quebec, Ontario, the 

 northern shore of Lake Superior to Saskatchewan, Dease Lake, 

 Vancouver's Island, Alaska. 



i As this is going through the press, I am informed by Mr. Chas. Oberthur that the 

 type is not present in the collection of Mr. Boisduval. Probably it will be found in the 

 collection of the late Mr. Sommer in Hamburg 



