188 BULLETIN 123, UNITED STATES NATIONAL MUSEUM. 



margin followed and preceded by a faint shading of blackish fus- 

 cous ; from middle of costa a somewhat irregular curved line of black 

 scales extending to upper outer angle of cell and thence up to apex ; 

 costal area enclosed within this black arc, of the pale ground color 

 marked by three rather conspicuous black dashes; costa otherwise 

 very faintly strigulated with blackish fuscous ; ocelloid patch nearly 

 obsolete, indicated only by two very faint, vertical leaden bars ; cilia 

 dark brownish fuscous with a darker basal band and a whitish patch 

 at anal angle. Hind wing very pale smoky fuscous; cilia sordid 

 whitish with a smoky basal band. 



Male genitals of type figured. 



Alar expanse. — 1T.5-I8mm. 



Type. — In American Museum. 



Paratype.—Cdit. no. 24838 U.S.N.M. 



Type locality. — New Brighton, Pennsylvania. 



Food plant. — Unknown. 



Described from male type and female paratype from the Ameri- 

 can Museum collection collected by H. D. Merrick ("3-26-02") and 

 labeled "taken in coitu." 



In genitalia this species belongs with the foregoing two and all 

 three have the characteristic harpe structure of Epinotia^ showing 

 their derivation from that genus; but while pennsylvaniana and 

 radicana also have the Epinotia wing pattern, gerulae has distinctly 

 that of Gretchena or Exentera. It might easily be mistaken for one 

 or the other on superficial appearance were it not for its decided 

 costal fold. There is also a faint indication of raised scaling on the 

 fore wing as in Gretchena. 



18. GWENDOLINA, new genus. 



(Figs. 32,323.) 



Genotype. — Gwendolina concitatricana., new species. 



Fore wing very slightly rough scaled; termen with a notch at 

 vein 4; 12 veins; T, 8, 9 approximate at base; 10 from cell midway 

 between 9 and 11 ; 11 from cell slightly before middle ; upper inter- 

 nal vein of cell from between 10 and 11 ; 3, 4, and 5 closely approxi- 

 mate at termen; 2 appreciably bent at 2/3; costal fold present in 

 male. 



Hind wings with 8 veins; 6 and 7 closely approximate toward 

 base; 3 and 4 connate (in some specimens very short stalked). 



Male genitalia as in Gretchena except : 



Socii not strongly chitinized nor elongately triangular but broad 

 as long, almost circular. 



The males also have an additional character in that there is a 

 heavy black sex scaling on the upper surface of the abdomen, on 



