138 BUIXETIN 123, UNITED STATES NATIONAL MUSEUM. 



13. Second joint of palpus clothed with, long scales which extend far beyond and 



cover terminal joint (21) hirsutana. 



Second joint of palpus not so clothed ; terminal joint exposed. 



(22) purpurissatana, 



14. Male with costal fold extending more than half the length of the wing 15 



Male with fold not extending beyond middle of costa 16 



15. Fore wing sordid pinkish white with bluish fuscous markings ; termen and 



cilia of same from apex to above tornus blue black ; dark basal patch out- 

 wardly angulate (18) obfuscana. 



Fore wing white marked and mottled with black, red-brown and leaden 

 scales ; termen from apex to above tornus margined with red-brown ; dark 

 basal patch with outer margin crenulate (20) carolinana. 



16. Fore wing unicolorous, bright ochreous (10) ochraceana. 



Fore wing not unicolorous ; if so, not bright ochreous 17 



17. Fore wing with a white median area, blackish fuscous basal patch, a gray- 



ish fuscous suffusion over outer third and a distinct round black spot at 



lower outer angle of cell (15) scudderiana. 



Fore wing pattern otherwise 18 



18. Fore wing with ground color ashy gray-white suffused with darker gray and 



with definite dark fuacous-gray basal and outer dorsal patches but these 



not well contrasted against ground color (13) exacerbatricana. 



Fore wing with ground color other than ashy-gray white ; or if so colored, 

 without basal and outer dorsal patches or with these strongly contrasted 

 against ground color 19 



19. Fore wing with pale ground color and well contrasted dark basal patch and 



dark patch on outer dorsal margin ; head black, dark fuscous, or ochreous 



fuscous 20 



No such basal and dorsal patches on fore wing; or, if latter are present, 

 head white or whitish ochreous 24 



20. Basal patch and dark markings on fore wings dark slate gray or bluish 



fuscous 23 



Dark markings pale brown or ferruginous 21 



21. Dark markings on fore wing pale brown, spotted with black scaling ; pale 



areas mottled with lead-colored scales giving a marbled appearance to the 



fore wing . (25) suffusana. 



Dark markings on fore wing ferruginous, at least toward termen where 

 there is a well defined, inwardly curved ferrugineous band_(28) culminana. 



22. Hind wing whitish (27) illotana. 



Hind wing brown or smoky fuscous 23 



23. Pale areas of fore wing somewhat pinkish (19) desertana. 



Pale areas of fore wing pale whitish gray (17) discretivana. 



24. Terminal joint of palpus black and antenna Avith a sharply contrasted black 



spot on second joint 27 



Terminal joint of palpus not black and antenna without such black spot 

 on second joint 25 



25. Ground color of fore wing whitish or pale yellow ; distinct basal and outer 



dorsal dark patches 26 



Ground color of fore wing ochreous-fuscous or brownish gray; ocelloid 

 patch white and a white germinate dash on costa near apex; no other 

 contrasted markings (3) strenuana. 



26. Ocelloid patch and median pale area of fore wing yellowish (11) sosana. 



Ocelloid patch and median pale area of fore wing whitish (12) insidiosana. 



