482 William T. M. ForbBs 



5. Ground white, lightly dusted with gray. 7. trisignana. 



5. Ground pearl gray 10. chalybeana. 



4. With the scale ridge abruptly offset inward at lower edge of cell, and 

 less below Cu 2 , outward; ground white, lightly dusted with gray. 



9. nigrolinea. 

 4. With the scale ridge usually absent in cell Cu x (next below discal cell) ; 



ground pu^e white 8. niveana. 



4. With separated tufts; when more than four in line, quite small and 

 clean-cut. 

 5. Most distinct mark a triangular patch on middle of costa. 

 6. Ground white. 



7. With connected brown reticulation and brown terminal line. 



12. americana. 

 7. With separated brown dots, or a very little reticulation toward 



margin 4. subnivana. 



6. Ground gray or brown. 



7. Inner boundary of dark costal patch clean-cut; head light, ground 



broadly grayish 16. schalleriana. 



7. Inner boundary of dark costal patch blurred; head deep brown. 



15. logiana. 

 7. Head, body, and ground of wings concolorous, dark fawn color. 



23. ferrugana. 



7. With some slightly darker reticulation, or raised black points, 



or both; buff forms with the base of the wing distinctly 



grayer 11. comandrana 



7. Evenly brown, varying from pinkish cream to deep yellow-brown, 



or narrowly reticulate with white 5. cervinana. 



7. Not placed 6. heindeliana. 



5. Most distinct mark an oblique antemedian fascia or a longitudinal 

 stripe. 

 6. With a distinct tuft in cell Cu l5 below those lying beyond middle 

 of cell, and with outer part rough-scaled or with raised tufts. 

 7. Tuft in cell CUj in line with the others. 



19. maculidorsana, 18. maccana. 

 7. Tuft in cell CUj basal of the others. 



8. Contrastingly marked with black, gray, white, and sometimes 



yellow 20. variana. 



8. Ground pearl gray 15. logiana. 



8. Ground violet-gray, with a small yellow spot beyond discal 



tufts only 22. pulverosana. 



8. Ground reddish brown or reddish gray 23. ferrugana. 



8. Ground dull fuscous, or yellower, with red-brown markings. . 



15. logiana. 

 6. Outer part of wing, and usually cell Ciij, quite smoothly scaled. 



17. hastiana. 



I. Fore icing with smooth scaling, rounded apex, and convex to straight costa. 



1. P. minuta Robinson. Typically orange, the scales shining, but reticulate with 

 dull scales; often yellow, reticulate with orange. 



The moth becomes darker later in the season, successive specimens passing 

 through red and crimson to gray with only a few scattered red dots and striae 

 (variety Cinderella Riley, probably the same as oxycoccana Packard). The area 

 of the dull scaling becomes less at the same time and finally disappears. 9-18 mm.; 

 the early yellow and orange specimens usually the smaller. 



