Lepidoptera of New York and Neighboring States 223 



with white tips; fore wing with irroration sometimes forming faint longitudi- 

 nal lines. Base of fore wing white, fascia narrow and irregular, oblique on 

 costal and erect on dorsal half; a subterminal spot on inner margin, and a spot 

 further out on costa, rarely obsolescent. Fringe with a line of black dots in 

 base. Tibiae and tarsi blackish, tips of segments and basal half of hind tibia 

 white. 9-10 mm. 



Mine on Hystrix and especially Elymus; whitish, on upper side of leaf, and 

 usually extending its whole width, the under side of the leaf remaining green. Larva 

 pale greenish or grayish, with narrow dorsal and broad lateral whitish lines, and a 

 curved brown mark at rear of prothorax. Pupa attached flat to the leaf, head 

 up; slender, elongate, not shining; with low rounded tubercles on sides of 

 mesothorax and small ones on head; yellowish gray. Larva overwintering, the 

 moths emerging in May. 



Cincinnati, Ohio. 



11. A. prasmaturella Clemens. Palpi white above, fuscous below. Fore wing 

 dull purplish black, dusted with white; head, thorax, and base of fore wing gray- 

 ish fuscous, somewhat contrasting; antennae darker. Fore wing with a white 

 fascia before middle, and costal and dorsal spots toward apex, almost meeting. 

 Extreme apex white, a row of dark scales in the fuscous fringe. 6-7% mm. 

 (albapalpella and cristatella Chambers). 1 



Larva on nodding wild rye {Elymus canadensis) ; mine linear, becoming a 

 blotch as wide as the leaf, 10-11 cm. long. Moth in April to June and August. 

 Late specimens tend to be suffused. 

 Pennsylvania, Ohio. 



12. A. illectella Clemens. Fuscous, dusted with dark brown. Head and palpi 

 yellowish, antennae fuscous. Fore wings with the fascia located before the middle, 

 and spots nearly meeting four-fifths way out; a silver streak in costal fringe, 

 edged with black. (Cosmiotes Clemens.) 



Pennsylvania. 



13. A. maculosella Clemens. Blackish, suffused with dark golden brown; head 

 dark brown, palpi dull yellowish, antennae fuscous. Fore wing with fascia at 

 middle silvery; a spot on costa near apex; apex blackish, fringe grayish brown. 



7 mm. 



I have seen only the type, which is too poor to recognize. 

 Pennsylvania. 



14. A. unifasciella Chambers. Brownish, iridescent with reddish purple. Palpi 

 white. Fore wing with fascia just before the middle oblique, white, the ground 

 much deeper beyond it; a small white spot just before the dorsal fringe begins, 

 with a narrow white streak nearly crossing the wing just beyond it. Legs spotted 

 with yellowish white. 6 mm. 



Canada. 



15. A. irrorata Braun. Dark gray, heavily dusted with black; palpi black 

 beneath, gray above; antennae black. Fore wing with a narrow, irregularly 

 indented fascia just beyond one-third the wing-length; and costal and dorsal 

 white dots just beyond two-thirds. Fringe with a series of black dots in base. 

 Hind wing concolorous. Pale under side of abdomen less contrasting than usual. 



8 to 11 mm. 



Larva in leaf of Glyceria nervata, (as a stray on Agrostis) in wet places. 

 Mine linear, very narrow, yellowish green; starting at the base and terminating 

 near the apex of the leaf, the larva retiring to the base by day, and feeding at 

 night; more rarely in a short, detached mine at apex of leaf, which is deserted 

 by day. Larva yellow when young, glaucous aoove when grown. Pupa attached 

 to the upper side of a leaf near its base, head downward, broader and flatter 

 than A. leucothoraao, with more tubercles on mesothorax, and stronger lateral 

 ridges. Larva in early spring; moth in late May and early June. 



Ohio; common. 



