NORTH AMERICAN EUCOSMINAE. 17 



Specimens in National Collection, American Museum, and collec- 

 tion Barnes from Alameda, Pasadena, and Los Angeles Counties, 

 California. 



Alar expanse. — l-t-lT mm. 



Type. — In American Museum. 



Type locality. — iVlameda Count}^, California. 



Food Plojnt. — Pi7ius, species. 



4. RHYACIONIA BUSCKANA, new species. 



(Fig. 51.) 



Antennae of the male coarsely ciliate. Palpi sordid white speckled 

 with grayish fuscous. Head grayish fuscous shading to reddish fus- 

 cous above. Fore wing from base to outer fourth grayish fuscous 

 barred with gray-white, the gray-white markings rather faint but 

 distinguishable and in four pair of vertical bars; outer fourth of 

 wing red with a bright red line along termen; cilia sordid white 

 with a blackish fuscous subbasal line and a blackish fuscous terminal 

 shading.- Hind wing smoky fuscous with a very distinct dark basal 

 line. Legs fuscous banded with Avhite and with hind tibiae sordid 

 white faintly dusted with fuscous. 



Male genitalia of type jfigured. 



Type.— Cat. No. 24785, U.S.N.M. 



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

 lection Barnes. 



Tyjye locality. — Bellmore, Long Island, New York. 



Food plant. — Unknown. 



Described from male type from Bellmore, Long Island (" G. P. 

 Englehardt, IV-1913 ") ; one male and five female paratypes from 

 Central Park, Long Island (Englehardt, March and April) ; one 

 female paratype from Riverton, New Jersey (" IV-22, 06 ") ; one 

 female paratype from lona, New Jersey (" IV-25 ") ; one male para- 

 type from Harrisburg, Pennsylvania ("III-26-11 ") ; and one female 

 paratype from Hazleton, Pennsylvania ("IV-25"). I also have 

 before me several specimens (males and females) taken flying at 

 Falls Church, Virginia, by Miss Ada F. Kneale during the last week 

 in March, 1920. 



This is the species that has appeared in our collections as the 

 European Retinia turionana Hiibner. The true turionana belongs in 

 the genus Petrova and does not occur in our fauna. P. husckana is 

 close to the western montana Busck which it resembles closely in 

 genitalia. It is distinguished from it and adana by its aedoeagus, 

 which is distinctly toothed for a greater part of its length. In the 

 other two this organ is smooth. R. montana is also distinguished 



