184 BULLETIN 123, UNITED STATES NATIONAL MUSEUM. 



6. GRETCHENA AMATANA, new species. 



(Fig. 319.) 



A dark grayish fuscous species powdered and marked with ashy 

 gray and blackish scales, the paler areas having a somewhat ochreoiis 

 tint especially towards costal margin of fore wing. Fore wing with 

 a distinct, outwardly angulate, dark basal patch ; on middle of dorsal 

 margin a somewhat irregular pale blotch, in some specimens extend- 

 ing from basal patch almost to ocellus ; ocellus pale but not sharply 

 contrasted; above ocellus a crescent of black scales, often fusing 

 with a short black streak on upper outer edge of cell, forming with 

 it what looks like a thin black sickle ; cilia gray dusted with blackish 

 fuscous, somewhat paler at anal angle and with one or two pale 

 dashes below apex. Hind wing smoky fuscous; semilustrous ; cilia 

 but slightly paler with a faint dark basal band. Harpe of genitalia 

 with a row of 6 or 7 short stiff marginal spines on lower margin 

 near anal angle of cucullus. 



Male genitalia of type figured. 



Alar expanse. — 17-19 mm. 



Type. — In American Museum. 



Paratypes. — Cat. No. 24836 U.S.N.M. ; also in American Museum 

 and collection Barnes. 



Type locality. — Oak Station, Pennsylvania. 



Food plant. — Unknown. 



Described from male type and 3 male and 1 female paratypes from 

 Oak Station, Pennsylvania ("F. Marloff, May"), 2 male and 4 

 female paratypes from New Brighton, Pennsylvania (" H. D. Mer- 

 rick, May-June"), 1 male and 1 female paratypes from Hampton, 

 New Hampshire (" S. A. Shaw, June"), 1 male paratype from Pitts- 

 burgh, Pennsylvania ("H. Engel, June 8-05"), and 1 male paratype 

 from Jefferson County, West Virginia (Kearfott, " VIII-1 ") out 

 of a large series from the American Museum collection that had been 

 set aside as a new species by Kearfott under the manuscript name 

 amatana, here adopted. Other specimens in the National Collection 

 and American Museum collections from New Jersey and Massachu- 

 setts. 



This species is at once distinguished from all others in the genus, 

 but delieatana Heinrich by the shape of the cucullus of the male 

 genitalia and from the latter by its broader wings, more sordid 

 coloring, and the number of marginal spines before anal angle of 

 cucullus. This latter character seems constant. The color and pat- 

 tern is somewhat variable. 



Veins 7 and 8 of fore wins; connate. 



