140 BULLETIN 132, UNITED STATES NATIONAL MUSEUM 



nitidanum but an apparently undescribed species. Fernald recoir- 

 nized this and proposed the name zellerianum for it. At the same 

 time he identified as zellerianum specimens reared from Betula alba. 

 If Zeller's description and figure are accurate this identification of 

 Fernald's is also an error; for the Betula specimens match neither 

 figure nor description. Kearfott noticed this discrepancy and after 

 following Fernald for some years, suddenly applied the name zeller- 

 ianum to quite a different looking insect (what I am describing 

 further on in this paper as Exartema trepidulum (p. 147), and gave 

 the manuscript name hefulana to the moths which he, Fernald and 

 others had previously identified as zellerianum. Kearfott's speci- 

 mens, however, while they agree better than Fernald's with Zeller's 

 figure, do not altogether agree with his description, and for that 

 reason can not be accepted without considerable question. An ex- 

 amination of the type in London will settle the matter, for Fer- 

 nald's name must apply to the specimen identified and laJbeled by 

 Zeller as nitidanum Clemens. In the mean time, so as not to add to 

 the confusion, I am continuing the use of the name as Fernald ap- 

 plied it and assuming that he was correct in identifying the Betula- 

 feeding, ferruginous species as the true zellerianum. 



Male and female genitalia figured from reared specimens in 

 National Collection; male from East River, Connecticut (C. R. Ely, 

 " VII-26-12") and female ("K. 34 ") without locality label but pre- 

 sumably from Xew Jersey. 



Bursa of female with signum 



Distribution. — Pennsylvania, New Jersey, Rhode Island, Con- 

 necticut, Maine, New Hampshire. 



Alar expanse. — 16-20 mm. 



Type. — In British Museum. 



Type locality. — Maine. 



Food plant. — Betula alba. 



11. EXARTEMA FOOTIANUM (Fernald) 



(Figs. 76, 205) 



Eccopsis fooUana Fernald, Bull. Buffalo Soc. Nat. Sci., vol. 4, 1882. p. 53. 

 Exartema footianum Fernald, in Dyar List N. Amer. Lepid., no. 5062, 



1903. — Barnes and McDunnough, Check List Lepid. Bor. Amer.. no. 



6809, 1917. 

 Cyniolomia footiana Forbes, Memoir 68, Cornell Univ. Agr. Exp. Sta., 



1924, p. 470. 



A distinct species easily recognized by the characters given in the 

 key. 



Harpe of male genitalia figured from reared specimen in National 

 Collection from Staunton, Va. {Quercus, 26 June, 1919, Heinrich) ; 

 female from American Museum from Montclair, N. J. 



Bursa of female without sitrnum. 



