NORTH AMERICAN EUCOSMINAE. 185 



7. GRETCHENA DELICATANA, new species. 



(Fig. 320.) 



Like amatana but with narrower fore wings and a cleaner looking 

 more diffused and more whitish gray powdering on fore wing, the 

 pale suffusion extending along costa to base and breaking the basal 

 patch ; the longitudinal black scaling also forms more of a continued 

 narrow line from apex to well back on upper margin of cell, not 

 forming so sickle shaped a mark as in anudana. Hind wing also 

 paler, especially toward base. Genitalia as in ainatana except with 

 fewer marginal spines on harpe near anal angle (1 to 5) and always 

 more on one harpe than the other. The termen of fore wing has 

 also more of a notch at vein 4, approaching the decided notch of 

 Exentera. Veins 7 and 8 of fore wing connate. 



Male genitalia of type figured. 



Alar expanse. — 14—16 mm. 



Type.— C^it. No. 24837 U.S.N.M. 



Paratypes. — National Collection, American Museum, and collec- 

 tion Barnes. 



Type locality. — Oak Station, Pennsylvania. 



Food plant. — Unknown. 



Described from male type and 4 male and 3 female paratypes from 

 Oak Station, Pennsylvania (Fred Marloff, April-May), 1 male 

 paratype from Beaver County, Pennsylvania (Kemp, May), 1 male 

 and 2 female paratj^pes from Essex County Park, New Jersey (Kear- 

 fott, May), 1 female paratype from Montclair, New Jersey (Kear- 

 fott, May), and 1 female paratype from New Brighton, Pennsyl- 

 vania (H.D. Merrick, May), out of a series in the National Collection 

 and the American Museum that had been determined as Exentera 

 liaracana Kearfott and placed by him with his types of that species. 

 Superficially the two are much alike but haracana has not the white 

 dash in cilia of fore wing below apex so characteristic of most 

 Gretchena. 



8. GRETCHENA BIANGULANA ( Walsingham) . 



(Fig. 321.) 



^teganoptycha Mangulana Walsingham, IIlus. Lepid. Heter. Brit. Mus., vol. 4, 



1879, p. 71. 

 Epinotia hiaiigulana Feenald, in Dyar List N. Amer. Lepid., no. 5230, 1903. 

 Enaromnia Mangulana Barnes and McDunnough, Check List Lepid. Bor. 



Amer., no. 7154, 1917. 



This species is easily recognized by its almost uniform gray-brown 

 color and the washed out almost obsolete character of the dark 

 markings, the pale and dark shades fusing together and the pale 

 dorsal area of fore wing more indicated than sharply defined. There 



