21 



( Without median or subterminal lines, . . . vulgivagellus, 



\ With cross lines, 35. 



r Terminal space a brighter yellow than rest of wing, decorellus. 

 \ Terminal space of the same shade as rest of wing, . . 36. 



Subterminal line narrow, ruricolellus. 



Subterminal line broad, ...... biothanatalis; 



Several heavy brown stripes between the lines, . . hulstellus. 

 Without brown stripes between the cross lines, . . .38. 



Subterminal line finely dentate, 39. 



Subterminal line not dentate, 40. 



Bright yellow along the submedian fold, . . hemiochrellus. 



Submedian fold not bright yellow, mutabilis. 



Subterminal line very near the outer margin, . attenuatus. 

 Subterminal line not very near the outer margin, . . .41. 

 With white lines through the middle, . . . hayliellus. 

 Without white lines through the middle, . . . .42. 

 ( Top of the head and thorax white, .... teterrellus. 



I Top of the head and thorax not white, 43. 



f Fore wings reddish brown, anceps. 



{ Fore wings grayish, undatus. 



r Dark brown with white median shade and subterminal line, 

 44. -j trichostomus. 



^ Without white median shade, 45. 



Median white stripe from base of wing, . . . oregonicus. 



Without median white stripe, 46. 



Fore wings with a white point near the end of the cell, 



bonifateUttf. 



46. ( Fore wings dark brown, caliginosellus. 



Fore wings ashy gray, zeellus. 



Fore wings ochreous yellow, 47. 



Median and terminal spaces slightly ashy .... ulce. 

 Median and terminal spaces not ashy, . . . luteolellus* 



i 



