NORTH AMERICAN EUCOSMmAE. 73 



6. Fore wing pale lemon yellow unmarked (10) gandana. 



Fore wing bright canary yellow with a black dot at end of cell. 



(81) bipunctella. 



7. Fore wing entirely unicolorous sometimes finely dusted with pale or sub- 



lustrous scales giving an ashy appearance but not conspicuously spotted_8 



Fore wing more or less evenly peppered with small spots of dark or white 



scales 15 



8. Fore wing gray (86) excerptionana. 



Fore wing ochreous or somewhat reddish or decidedly brownish 9 



9. Fore wing decidedly brownish with ashy gloss 10 



Fore wing pale ochreous to ochreous-fuscous or rust red 11 



10. Cilia of fore and hind wing white (83) denverana. 



Cilia of fore and hind wing dark (105) molDilensis. 



11. Fore wing rust red (50) immaculana. 



Fore wing pale ochreous to ochreous fuscous 12 



12. A few sublustrous scales on fore wing, especially toward apex, also a few 



scattered black scales in ocellar area (48) subflavana. 



No such black or sublustrous scales on fore wing 13 



13. Hind wing pale smoky fuscous, shining (45) luridana. 



Hind wing dark smoky fuscous, dull 14 



14. Alar expanse averaging 19 mm.; not over 22 mm (46) consociana. 



Alar expanse averaging 25 mm.; not under 23 mm (49) handana. 



15. Fore wing blackish fuscous evenly and densely spotted with white. 



(93) landana. 

 Fore wing grayish ochreous or ochreous fuscous 16 



16. Irrorations on fore wing very fine and evenly placed, semi-metallic; hind 



wing smoky fuscous, cilia concolorous (47) irroratana. 



Spotting on fore wing dark, coarse, irregularly placed; hind wing very 

 dark dull fuscous, cilia white (84) fuscosparsa. 



17. Fore wing light yellow to brown or red with pure white (silvery) mark- 



ings either in longitudinal stripes, blootches, cross bands, or irregular 



curved markings ; no ocellus 18 



Fore wing otherwise 36 



18. Ground color of fore wing pale salmon yellow, silver markings faint, mark- 



ing the veins, most noticeable along base of cell and vein 7 (9) caniceps. 



Ground color otherwise ; white markings distinct 19 



19. Markings of fore wing transverse, as broad as long or broader 20 



Markings longitudinal or oblique 23 



20. A median transverse white band 21 



No such median transverse white band ; white markings in large blotches 



obscuring most of the ground color 22 



21. Small basal spot followed by a single transverse band_(l) qainquemaculana. 

 Small basal spot followed by two transverse bands (2) robinsonana. 



22. Groimd color of fore wing brown (11) adamantana. 



Ground color of fore wing pale lemon yellow (12) spaldingana. 



23. Without a serpentine white bar on disk 24 



With a serpentine white bar on disk 33 



24. White markings consisting of two longitudinal silver streaks only. 



(4) fandana. 

 White markings otherwise 25 



25. White markings in narrow silver streaks largely following the veins 26 



White markings otherwise 27 



26. Ground color of fore wing pale golden yellow (18) argenteana. 



Ground color of fore wing olivaceous (19) idahoana. 



