616 WILLIAM T. M. FORBES 



Larva eating into growing points of hickory in the early spring, causing them to 

 wither. Moth in June. 



New York: West Farms? (type), Brooklyn. 



This species has been called nigrosignella, and the species here discussed under 

 the name of cliclla, angusella; but in each case the sex-scaling of the under side 

 of the hind wing was mentioned in the original description, making the present 

 determination fairly certain. 



2. A. demotella Grote. Similar to A. angusella; head white, thorax very pale; 

 base of fore wing contrastingly paler than median area. Tuft gray, the gray area 

 shading into the red about it. Antemedial band outwardly oblique, light red 

 followed with cream color. Median area less mottled than in A. angusella; discal 

 dots obscure; postmedial line fainter and marginal area less tinted with red. 

 20-24 mm. 



Larva on black walnut, killing the buds as 4.. angusella does; dark olive brown; 

 head, cervical shield, and tubercles shining dark brown. Moth in June and Jtily. 



Ontario to North Carolina, Pennsylvania, and Missouri. New York: Ithaca, 

 West Farms. 



This species is regularly correctly determined. 



3. A. minimella Ragonot. Front and palpi reddish; thorax dark fuscous. Fore 

 wing heavily overlaid with blackish on a light gray base; the blackish gathering in a 

 large triangular costal patch beyond the antemedial line, which is pale gray, 

 preceded by a black-centered, reddish ridge. Discal dots distinct; postmedial line 

 obscure. 13-1(5 mm. ( $ nigrosignella Hulst. ) 



August. 



Texas; also reported from North Carolina. 



I suspect that northern records under these names are based on other related 

 species. 



4. A. eliella Dyar. Gray, powdered on a white base. Thorax and base of fore 

 wing shaded with red; tuft blackish, followed by a broad orange-red and white 

 antemedial band, followed in turn by a slight blackish shade on the costa. Discal 

 dots joined; postmedial offset out in the middle, and finely denticulate, followed 

 by a red shade concolorous with the antemedial one, except at the apex, where 

 there is a weak oblique gray shade. 18 mm. 



June and early July; August. 



East River, Connecticut; New Brighton, Pennsylvania. New York: Ithaca. 



5. A. aurorella Ely. Head and thorax gray. Basal third of fore wing blackish, 

 strongly contrasting, its outer boundary but slightly oblique outward, reaching 

 Inner margin only a third way out. Outer part of wing pale gray, a little shaded 

 with pinkish, and darkening to the outer margin. Discal dots small, blackish; 

 postmedial line faint, paler. 20 mm.. 



July. 



New York : Ithaca, Ilion. 



6. A. stigmella Dyar. Purple-gray, much darker than A. aurorella. Head and 

 middle of collar white. Scale-ridge slightly darker, followed by a faint reddish 

 shade. Discal dots double. Postmedial line faint, paler in a darker shade. Disc 

 of hind wing, below, overlaid with yellow scales. 18 mm. 



May to August. Caterpillar a bud worm on hickory; gray green, with black head, 

 cervical shield, and true legs; and with brown tubercles and anal plate. 

 East River, Connecticut; Fort Lee, New Jersey. 



7. A. caryivorella Ragonot. Dark blue-gray, rather even, without any reddish 

 or yellowish shading. Lines diffuse; paler, defined with dark, especially toward 

 the median area; the antemedial bent at the middle. Discal dots strong, separate. 

 23 mm. 



The caterpillar is found on hickory in early spring; at first working in a 

 petiole, then in the top of a twig. It lives in a frass tube, the earlier, slender 

 portion of which is serpentine; and transforms in a large oval cocoon. 



