822 AMERICAN MICRO-I.EPIDOPTERA. 



noticeable. Beyond this, a second line runs through the middle of 

 the cilia. This line is formed by the tips of a row of scales of equal 

 length. 



The following table will separate the species: 



A. Oblique costal and dorsal streaks; fasciie, if yiresent, distinctly angulated : 

 never two straight fasciae. 



B. Ground color of the forewings white liamadryadella. 



BB. Ground color of the forewings not white. 

 C. An oblique white streak or patch at the base of the dorsal margin, rarely 

 indistinct (lentella, carysefoliella) , or indicated by its 

 dark margin only (agrifoUella) ; usually two angulated 

 fascife. 

 D. First pair of costal and dorsal streaks nearly perpendicular; second 

 pair very oblique. 



E. A white costal patch near the base unibellulariiie. 



EE. White costal patch indicated by dark margin only. 



agrifoliella. 

 DD. First pair of streaks parallel to the second pair. 

 E. No costal streak before the middle; a median fascia. 



!i»avi*Iiarella. 

 EE. A fascia at one-fourth and one-half. 



F. White streak at base of dorsum indistinct or indicated by external 

 dark scales only. 

 G. Third costal streak long and usually uniting with the third dor- 

 sal carysefoliella. 



GG. Third costal streak merely a sjjot leiilella. 



FF. White streak at base of dorsum large and distinct. 

 G. A tuft of brown scales in the apical cilia. ■ .inaorocarpellsi. 



GG. No such scales ciiiciiiiiatieila. 



CC. No such pale streak at base of dorsum. 



D. Dorsal margin white from base to beyond middle. 



E. Dorso-basal streak extending to oblique streak above the cilia. 

 F. Antennse annulate with brown for their whole length. 



congloiiioratella. 



FF. Basal third of antennte pure white iiliiiella. 



EE. Dorso-basal streak extending but little beyond the middle of the 

 dor.sal margin. 

 F. An oblicjue dorsal streak at end of basal streak. 



inediodorNoIIa. 



FF. No such streak quercivorella. 



DD. Dorsal margin not white. 



E. Costal and dorsal spots large; but little oblique, first i>air meeting or 

 almost meeting. 

 F. Apex enclosed in a conspicuous semi-circular white strt'ak. 



gaiiltlioi'iolla. 



FF. Last costal streak not extended across the wing iieiiioi'iN. 



I'^E. Not as above; first pair of streaks widely separated. 



