18 BULLETIN 123, UlTITED STATES NATIONAL MUSEUM. 



from both adana and tuschana by the number and size of its cornuti, 

 having a dozen or more short ones in a cluster while the other two 

 species have only three each and these rather long. 

 Named in honor of my friend, August Busck. 



5. RHYACIONIA ADANA, new species. 



(Fig. 52.) 



Like B. lyusckcma^ from which it differs in having very finely ciliate 

 (almost smooth) antennae in the male; darker palpi; a touch of red 

 on the tegulae ; and an invasion of the outer ferruginous shade into 

 the gray ground color on dorsum. In other words, the grayish basal 

 shade extends further out into the wing on costal than on dorsal half 

 of fore wing, not extending beyond the middle of the wing on latter. 

 In this respect the pattern is that of neomexicana without the longi- 

 tudinal black streak from middle of termen. It is distinguished also 

 by its aedoeagus which is smooth and tapers to a long curved pointed 

 tip. 



Male genitalia of type figured. 



Alar expanse. — 16-17.5 mm. 



Type.—C2it. No. 24786, U.S.N.M. 



Paratopes. — In National Collection, American Museum, and col- 

 lection Barnes. 



Type locality. — Forest Hills, Massachusetts. 



Food plant. — Unknown. 



Described from male type from Forest Hills, Massachusetts 

 ("Wm. Kaff, 5-IV-1910 ") ; two male paratypes from Falls Church, 

 Virginia (A. F. Kneale, March 21, 1919, and March 31, 1920) ; one 

 male paratype from Bluemont, Virginia (A. F. Kneale, March 30, 

 1920) ; and one male paratype from Hazleton, Pennsylvania (" Dietz, 

 IV-16-87"). 



Named in honor of Miss Ada F. Kneale, to whom I am indebted 

 for the very careful genitalia drawings accompanying this paper. 



Superficially this species is uncomfortably close to huschana, but 

 on male antenna and genitalia characters must be kept separate. 

 Neither have as yet been bred and the larvae of both are unknown. 



6. RHYACIONIA MONTANA (Busck). 



(Fig. 47.) 



Evetria montana Busck, Proc Ent. Soc. Wash., vol. 16, 1914, p. 147. — Baknes 

 and McDuNNOTJGH, Check List Lepid., Bor. Amer., no. 6777, 1917. 



I have seen only the type of this species. It differs from the others 

 of this immediate group (neomexicana, pasadenana, buscJcana, 

 adana) chiefly in the number and character of the cornuti of the 



