220 BUULETIN 123, UNITED STATES NATIONAL. MUSEUM. 



A paratype is in the American Museum. The rest of the types 

 are in the National Collection. I have seen no other specimens. 

 Alar expanse. — 15-18 mm. 

 Type. — In National Collection. 

 Type locality. — Piatt Canon, Colorado. 

 Food plant. — Gercocarpus parvifolius. 



Geoup B. Male without Costal Fold. 

 40. EPINOTIA BIGEMINA, new species. 

 (Fig. 374.)- 



Antennae ferruginous above, whitish gray beneath. Palpus with 

 the third joint long and exposed; ferruginous shading to fuscous at 

 tip; inner side of basal and second joint white. Face, head and 

 thorax ferruginous brown. Fore wing with the termen straight and 

 slanting; veins 3, 4, and 5 not approximate at termen; unicolorous 

 dull ferruginous brown ; cilia fuscous. Hind wing white, very faintly 

 mottled with fuscous; cilia white. 



Male genitalia of type figured. 



Alar expanse. — 14r-15 mm. 



Type. — In American Museum. 



Paratypes. — Cat. No. 24849, U.S.N.M. ; also in American Museum, 

 and collection Barnes. 



T'ype locality. — Carmel, California. 



Food plant. — ^Unknown. 



Described from male type, and 3 male and 3 female paratypes col- 

 lected by A. H. Vachell at Carmel, California ("Apr."), all from the 

 Kearfott collection of the American Museum. 



A distinct species reminding of arctostaphylana Kearfott, but dis- 

 tinguished by its genitalia and white hind wings. This and the fol- 

 lowing species illustrate the difficulty of such a character as the costal 

 fold. I have placed them in the group without fold, but the costa 

 is often partially curled up near base, sometimes for almost half 

 the length of the wing, suggesting a fold; but it is not completely 

 folded over. On wing shape, color and genitalia both species are 

 very close to vertumnmia^ vandana., and zandana of group A and 

 really belong with them except for the disappearance (or incom- 

 pleteness) of the fold. As it is, they form a connecting link between 

 the species of Epinotia with and without a decided fold. 



41. EPINOTIA BICORDANA, new species. 



(Fig. 368.) 



Antennae, palpi, face, head, thorax, and fore wing dull dark 

 fuscous; cilia paler shading to a dirty white toward anal angle. 



