NORTH AMERICAN EUCOSMINAE. 181 



exclude that tree. It is in all probability a hickory insect, but its 

 exact food plant has not been determined. Its pale grey color with 

 contrasted and hroken black streaking and its caudally projecting 

 socii (easily mistaken for a divided uncus and looking like nothing 

 so much as the frame of a lyre) coupled with its narrow harpes 

 readily separate it from anything else in the genus. Veins 7 and 8 

 of fore wings are normally short stalked but occasionally connate 

 and in a few specimens approximate at base. 



Male genitalia figured from specimen in National Collection from 

 Plummer Island, Maryland (E. A. Schwarz, Apr. 28, 1903). . 



Distribution according to specimens in National Collection, Amer- 

 ican Museum, and collection Barnes: Maryland, Pennsylvania, Vir- 

 ginia, New Jersey. 



Alar expanse. — 14^17 mm. 



Type.— Lost (?). 



Type locality. — Virginia. 



Food plant. — Unknown. 



2. GRETCHENA CONCUBITANA, new species. 



(Fig. 318.) 



Pale slate gray heavily dusted with grayish fuscous, except upper 

 part of face which is dark brownish fuscous, giving insect generally 

 a slaty fuscous color. Dark dustings on fore wing extending from 

 base into a faint much elongated outwardly angulate basal patch 

 reaching nearly to upper outer angle of cell; a similar faint dark 

 spot on dorsum before tornus; a slight shading above ocellus and 

 more or less dark dusting along costa ; hut no line or hlotch of hlach- 

 ish scaling above ocelloid patch or in middle of wing; seven narrow 

 faint white geminations on costa ; cilia dark slaty gray, paler toward 

 tornus and with a fine white dash below apex; ocellus of the paler 

 ground color but not sharply contrasted; underside of fore wing 

 pale semi-lustrous fuscous brown, darker than hind wing and with 

 the whitish costal geminations rather well marked. Plind wing 

 glossy smoke brown, paler toward base ; cilia whitish with a distinct 

 dark basal band. Male genitalia with socii projecting caudally from 

 tegumen (as in deludana) ; harpe nearly half as broad as long and 

 with cucullus no broader than middle of harpe. 



Male genitalia of type figured. 



Alar expanse. — 17-19 mm. 



2^2/pe._Cat. No. 24834 U.S.N.M. 



Paratypes. — In National Collection and American Museum. 



Type locality. — Monticello, Florida. 



Food plant. — Hicoria. 



Described from male type reared from Hickory under Quaintance 

 no. 12822 by J. B. Gill (at Monticello, Florida, moth issuing March 



