LEPIDOPTERA OF NEW YORK AND NEIGHBORING STATES 345 



5. Markings golden, not outlined. 



6. Apical marks of three or four confused striae; or suffused with 



golden. 



7. With a black apical spot; sometimes a single scale. 

 8. The golden area dominant; markings slightly diffuse. 



6. freyclla. 

 8. White ground color predominant; markings clean-cut. 



9. A forked median fascia 7. annettella. 



9. No forked median fascia 8. apicimaculella. 



7. No black apical spot. 

 8. Dorsal margin white. 



9. Inner margin narrowly white, with dark spots. 



13. belangerella. 

 9. Inner half of wing white. 



10. Xo dorsal dark spot 9. aubreticulata. 



10. A dorsal spot or dot near middle of inner margin. 



11. caslaneella. 

 8. Dorsal half barred with silver, white, and golden. 



5. pygmceella. 

 6. Apical marks simple, enclosing only three silver spots. 



2. calliphancs. 



2. Immaculate pale golden 12. laricella. 



1. Not metallic; markings brown or blackish. 



2. Expanse 12 mm; white dorsal area narrow, not extending up to fold toward 

 base. 



3. Spot on middle of inner margin rounded, separate 13. belangerella. 



3. Spot on middle of inner margin, broadly connected to dark costal region. 



14. conjugella. 

 2. Expanse 9 mm. ; white dorsal area often, covering half of wing. 



3. Ground color of fore wing light brown except basal half of inner margin. 



15. rileiella. 



3. Ground color white, more or less marked with black-brown. 

 4. A complete oblique transverse fascia. 



5. A large, dark streak preceding the fascia 17. austerella. 



5. At most, a small dot preceding the fascia 16. iindulatella. 



4. Median fascia broken below costa 18. thuiella. 



I. Fore wing ivith metallic markings. 

 *R 4 and R 5 -free; apical markings coarse ( Argyresthia ) . 



1. A. goedartella Linnaeus. Thorax bright golden; fore wing white and coppery 

 golden; first band running from costa at base to a quarter way out on inner 

 margin; median band a widely forking upright Y; outer band similar, but inverted 

 and sometimes joining the dark terminal patch. 11-13 mm. 



April; June to August. Larva green or reddish, with dark brown head and 

 cervical shield marked with black ; in catkins and under bark of twigs of birch 

 and alder. 



Europe; reported from various places in United States, in part, at least, in 

 error for A. calliphanes. 



2. A. calliphanes Meyrick. Head white; thorax white, slightly gray-stained; 

 wing markings exactly like those of A. goedartella, but on the average slightly 

 more extensive. 



Larva on alder. 



Toronto, Ontario, and Maine, to British Columbia and California. New York: 

 Albany. 



