NOKTH AMERICAN EUCOSMINAE. 35 



26. Ocellus with black dots, ten in number and arranged in two longitudinal 



lines (16) decempunctana. 



Ocellus with black dots, twelve or more in number and arranged in three 

 longitudinal lines (13) amphorana. 



27. Fore and hind wings ferruginous brown 28 



Fore and hind wings sometimes concolorous ; but if so, not ferruginous 



brown .: 32 



28. Outer third of fore wing appreciably darker than basal area 29 



Outer third of fore wing not appreciably darker than basal area. 



(1) radiatana (female), 



29. Cilia of fore wing fuscous, heavily dusted with grayish white. 



(3) essexana (female). 



Cilia of fore wing ferruginous, if somewhat fuscous not heavily dusted 



with white 30 



30. Ocellus of fore wing obsolete 31 



Ocellus indicated by a couple of faint vertical silvery bars and two longi- 

 tudinal black streaks (5) umbrastriana (female). 



31. Hind wing darker, and more fuscous than darkest shading on fore wing. 



(4) roseoterminana (female). 



Hind wing no darker than darkest shading on fore wing ; more ferruginous 



than fuscous (7) f erruginana. 



32. Fore wing distinctly ferruginous, dull ochreous, dark gray brown or black- 



ish fuscous; if sometimes pale gray brown or pale ochreous not over 



20 mm. alar expanse 33 



Fore wing otherwise 40 



33. Fore and hind wings both blackish fuscous (9) perfuscana. 



Fore and hind wings not both blackish fuscous 34 



34. Entire fore wing pale rust red or dull ochreous 35 



Entire fore wing not so colored 36 



35. Fore wing rust color; alar expanse over 20 mm (56) benjamini. 



Fore wing ochreous; alar expanse less than 15 mm (18) mormonensis. 



36. Entire fore wing except yellowish ocelloid patch and extreme sub-apical 



area, blackish fuscous ; hind wings pale smoky fuscous. 



(8) ochroterminana. 



Entire fore wing not blackish fuscous; or if so hind wings very dark 



brown : 37 



37. Hind wing dark brown or dark smoky fuscous with white cilia. 



r(6) formosana. 

 1(2) awemeana (female). 

 Hind wing pale smoky fuscous; if dark with but slightly paler cilia 38 



38. Fore wing dark reddish ochreous; head white (10) raracana. 



Fore wing brownish ochreous or brown dusted with blackish ; if sometimes 



red, head not white 39 



39. Fore wing fawn brown, shading to whitish ochreous on outer fourth and 



above cell; head whitish ochreous (12) ochrocephala. 



Fore wing gray brown, brownish ochreous, brown dusted with blackish or 

 red-brown; but not shading to whitish ochreous; head ferruginous or 

 gray (11) corculana. 



40. Ground color of fore wing cream color, pale lemon yellow, ochi-eous or 



olivaceous 41 



Groimd color grayish fuscous, ashy gray or white 58 



41. Ground color of fore wing pale lemon yellow 42 



Ground color of fore wing ochreous, cream color or olivaceous 43 



