Lepidoptera of New York and Neighboring States 175 



Larva on sugar maple. G. packardella has been confused with G. alchvmiella, 

 which has an entirely differently shaped patch. 

 Generally distributed. New York: Ithaca. 



19. G. purpuriella Chambers. Dull grayish brown with purple iridescence, the 

 face typically white below, but often only slightly paler; labial palpi black'sh 

 on outer side, except at extreme apex, dirty white within. Fore wing with base 

 of inner margin concolorous, the triangle white, often scaled with fuscous, and 

 variable in size, but normally narrow with concave sides, ending in a point near 

 or above the fold; costa outwardly with faint pale and dark striae. Apical fringe 

 gray, barred with black. Tarsi with more dark scaling than usual. 12 mm. 



This form is general in distribution; and is common in August, and from October 

 to April. The caterpillar feeds on willow and poplar, rolling the leaf down from 

 the tip, and sometimes using a whole leaf. The pupa is usually formed in the 

 roll, rarely in a web outside. Ely considers this form conspecinc with G. stigmella, 

 but they appear distinct to me. 



New York: Ithaca. 



20. G. stigmatella Fabricius. Closely similar, but with paler reddish ground. 

 Face on the average more extensively pale ; % triangle with very little dark scaling, 

 and relatively larger, not pointed on the fold {upupcepennella) . 



Larva on willow. Moth in July. 



Wales, Maine; Framingham, Massachusetts; Cincinnati, Ohio; New Brighton, 

 Pennsylvania; Europe. Possibly introduced in America. 



21. G. negundella Chambers. Light tawny brown, suffused with crimson and 

 greenish; the costa patch not at all contrasting in light specimens. Palpi dirty 

 yellowish white, with tips of joints blackish; antenna? brown, obscurely annulate. 

 Head and thorax dull, and rather greenish on the whole; face pale below. Fore 

 wing with costal patch large and irregular, extending nearly to apex, as in 

 typical belfrageella; apex with obscure yellow spots; fringe with three blackish 

 stripes. 13 mm. 



The palest specimens show brownish spots in the ground, especially toward the 

 apex. Eastern specimens are darker than the types (from Colorado) and show 

 black dusting on the palpi, and the basal half of the costal patch has some black 

 edging. 13 mm. 



July and August; October to early spring. Caterpillar at first in a narrow, 

 linear mine on under side; then crossing to upper side; then forming a large, whit- 

 ish blotch; and finally, the usual cone: on Acer negundo. 



Ohio and west (probably also eastward where the food occurs.) 



22. G. azaleae Busck. Head, thorax, and base of fore wing, except on inner 

 margin, dark purple; costal half of fore wing golden almost to apex, dorsal margin 

 tawny with crimson iridescence; the boundary usually diffuse. 10 mm. 



This species is a green-house pest on evergreen azaleas, and has apparently been 

 introduced from Japan via Holland. It has been confused with zachrysa Mey- 

 rick, but appears distinct. The latter is an Indian species feeding on apple. 



Massachusetts. New York : Rochester, Yonkers. 



23. G. ostryseella Chambers. Autumn form : Antenna? grayish, annulate with 

 dark brown; palpi yellowish white, the second and third joints with broad black 

 apical bands; maxillary palpi similar. Face golden below, more or less scaled 

 with brown and sometimes with a brown cross-line. Fore wing pinkish brown, 

 speckled with patches of blackish scales, with a more or less distinct elongate 

 patch near anal angle, leaving a few golden scales on the. margin. Pale costal 

 triangle dark-margined and separated from the patch beyond the triangle; golden, 

 suffused with dark except at its boundaries on costa and inner margin; outer 

 spot more or less suffused. 10 mm. 



The larva feeds on Ostrya, in a linear, whitish mine on the upper side of a leaf; 

 then in a whitish, digitate blotch over a vein, which it eats out transparent before 



