NOETH AMERICAN EUCOSMINAE. 199 



3. Fore wing ferruginous brown (40) bigemiua. 



Fore wing fuscous brown (41) Bicordana. 



4. Fore wing longitudinally bicolored, witli costal area purplish red or pur- 



plish brown and dorsal area whitish 5 



Fore wing not longitudinally bieolored ; or if so, costal area grayish fus- 

 cous 7 



5. Costal area of fore wing purplish red 6 



Costal area of fore wing purplish brown (60) lindana. 



6. Fore wing with whitish dorsal area strongly arched near tennen. 



(59) vagana. 

 Fore wing with whitish dorsal area but slightly arched near termen. 



(58) septemberana. 



7. Fore wing longitudinally bieolored, but not markedly so ; the whitish dorsal 



area more or less lined with fuscous (46) timidella. 



Fore wing not longitudinally bieolored , 8 



8. Fore wing salmon ochreous with black line along termen, small black dots 



along dorsal margin and conspicuous black dusting around ocelloid patch. 



(61) trossulana. 

 Fore wing otherwise colored and marked 9 



9. Fore wing with a conspicuous, blackish, irregular crescent marking on outer 



half of costa (62) signiferana. 



Fore wing without such 10 



10. Alar expanse less than 12 mm 11 



Alar expanse over 12 mm 13 



11. Ground color of fore wing whitish; hind wing very pale smoky fus- 



cous 12 



Ground color of fore wing bronzy fuscous; hind wing dark smoky fus- 

 cous (50) nanana. 



12. Fore wing with distinct transverse dark fascia from mid costa to pretornal 



dorsal margin; hind wing rather dark smoky fuscous (51) meritana. 



Outer transverse dark fascia faint or broken, not sharply contracted ; hind 

 wing very pale smoke color (49) normanana. 



13. Fore wing with a large triangular dark patch on custa or with a broad 



transverse dark band or spot extending outwardly from mid costa but 



not reaching dorsal margin 14 



Fore wing without such 19 



14. Costal marking a large triangular blackish gray patch (53) lomonana. 



Costal marking a transverse band 15 



15. Transverse marking chocolate brown or purplish fuscous 16 



Transverse marking rust or brownish red more or less dusted with black 



scales 17 



16. Transverse marking chocolate brown, reaching only to lower outer angle of 



cell (52) medioplagata. 



Transverse marking purplish fuscous, reaching almost to torn us. 



(54) purpuriciliana. 



17. Thorax and basal area of wing ochreous 18 



Thorax and basal area of wing reddish brown (57) cruciana, var. alaskae. 



IS. Underside of fore and hind wings unicolorous (55) cruciana (typical). 



Underside of fore wing darker than hind wing. 



(56) cruciana var. plumbollneana. 



19. Entire costa of fore wing markedly strigulated witli fuscous 20 



Costa faintly strigulated ; appreciably so only toward apex 22 



20. Dark marking of fore wing blackish or grayish fuscous 21 



Dark markings greenish gray (48) nonana. 



