LEPIDOPTERA OF NEW YORK AND NEIGHBORING STATES 431 



7. Ground pale lemon yellow. 



8. Costa appreciably barred with fuscous only on outer half. 



21. olivaceana. 



8. Costa barred from base to apex 22. verniochrana. 



7. Ground light ochre 20. imbridana. 



6. Gray, with two contrasting blackish patches on inner margin. 



19. tomonana. 

 6. Ground gray, powdery; or dark fuscous, without brown or yellow 



markings; expanse over 10 mm. 

 7. Two prominent, obliquely placed raised tufts in fold. 



6. Gretchina bolliana. 

 1. At most with a small continuous scale-ridge in fold. 



8. A gray line in middle of fringe 23. tarandana. 



8. Dark line in fringe, when present at its base. 



9. A clearly marked, curved, angular, black marking above 

 speculum, shaped like a bird's beak. 



5. Gretchina deludana. 

 9. No such markings; with several blackish shades when there 



is any decided black marking above speculum. 

 10. Fore wing shaded with brown, at least in certain lights. 

 11. Smaller (14 mm.); hind wing white at base. 



3. Gretchina watchungana. 



11. Normally larger (18 mm.) ; hind wing all light fuscous. 



Exentera species. 

 10. Fore wing dark gray or blackish, heavily dusted with 



white, and without brown scaling or iridescence. 

 11. Face contrasting blackish; posterior tufts blackish. 



1. Gretchina amatana. 

 11. Face concolorous or pale. 



12. Thorax whitish, contrastingly but diffusely spotted 

 with dark gray; fore wing powdery looking to 

 naked eye; face whitish .... 5. Epinotia signatana. 

 12. Thorax light, white-mottled; face darker, fore wing 

 light, powdery-looking, and with an indication of 

 the Laspeyresia lunule at the middle of the inner 

 margin (Laspeyresia garacana) . 



1. T. annetteana Kearfott. Basal half of fore wing dull ochre, shaded with light 

 brown; outer half powdered with light brown and white, with some ochre and lead- 

 gray streaks extending down from white points on the costa; the boundary between 

 the base and outer part also marked by a lead-colored fascia. Outer half of wing 

 nearly covered by a large circle, brokenly outlined with lead-gray; its upper 

 half filled with the white-dusted ground, the lower with four rows of black spots; 

 each row composed of two large spots, and often a third spot below them; with 

 a short, lead-gray bar between the second and third rows. Base of fringe also 

 dusted with white. Hind wing light brown. 15 mm. 



April. 



Rhode Island; Ohio; Texas. 



For points of distinction from the similar species of Eucosma, see the key to 

 Eucosma. 



2. T. refusana Walker. Light ochre -brown, shaded with gray; with pale streaks 

 along costa, on Cu, and in cell. Outer part of wing with a large lead-gray broken 

 circle, as in annetteana, and with some lead-colored costal striae on the ochre 

 ground. Upper half of circle with an area of brown, white-tipped scales, but only 

 half filled with them; lower half with four rows of black spots, each row con- 



