LEPIDOPTERA OF NEW YORK AND NEIGHBORING STATES 129 



t 



being black on the outer side of the second segment and extreme base 

 of the third, except as noted. 



19. T. arcella Fabricius. Head all white, tegulse with a black spot at base, 

 palpus occasionally all black on outer side, normally typical; scape white. Thorax 

 and fore wing white, fore wing with a little yellow shading and an angulate, 

 black, median band, sometimes broken; a spot covering the basal fifth of the 

 costa, and smaller blackish marks outwardly. 12 mm. 



American specimens are not typical and may represent a new species. The 

 larva as known in Europe is yellowish white, with a bright brown head, and has 

 been bred on fungi under the bark of dead alder twigs. 



July. 



Europe; Connecticut to District of Columbia and Indiana; California (?), 

 New York: Ithaca (Dietz). 



20. T. auropulvella Chambers. Head white; scape partly dark gray; second 

 segment of palpus outwardly all black, third segment all white. Fore wing white, 

 mottled with a little light golden brown, with a square, black spot on the middle 

 of the costa, continued by a narrow streak across the cell in dark specimens; 

 a black antemedial spot and sometimes a basal spot on the costa; some other 

 small black spots present, mostly on the margins. ] 1-16 mm. 



June and July. 



New Hampshire to North Carolina and Kentucky, westward to British Colum- 

 bia. New York: Ithaca. 



21. T. acapnopennella Clemens. Head with some gray scales, thorax and fore 

 wing in some specimens considerably dusted with black-tipped scales, scape white, 

 palpi typical. Pattern of fore wing about as in T. auropulvella, but less con- 

 trasting; the spots at the base of the costa rarely conspicuous. 10-16 mm. 

 ( minutipulvella Chambers ) . 



June to August. Larva on Polyporus tulipiferus; whitish, with dark head 

 and cervical shield. 



Canada to Louisiana. New York: Ithaca, Albany. 



21%. T. tylodes White. Antenna light gray, palpus with a dark streak on 

 outer side of second joint; shoulder with a gray spot. Fore wing with some 

 irregular yellowish scaling, and gray dusting, especially toward outer margin; 

 markings blackish gray; some striae on margins; a streak along basal fifth of 

 costa; a semioval spot on middle of costa with a rhomboidal spot before it on 

 inner margin; an irregular outer spot on costa. Apical fringe with two more 

 or less distinct gray shades. Hind wing light gray with paler fringe. 14 mm. 



Meyrick, does not compare this species, which is unknown to me, with any 

 other. It may be the same as acapnopennella. 



July and August. 



Toronto and Muskoka Lake, Ontario. 



22. T. apicisignatella Dietz. Head and scape white, shaft of antenna light 

 brown; palpi typical. Fore wing dull whitish, spotted with black; a black square 

 at middle of costa, extending well into the cell, and an equally large, black, sub- 

 terminal spot separated by a narrow white band from the black apex; fringe 

 barred. 12-13 mm. 



This species is very close to T. auropulvella but appears distinct. 

 New Hampshire; Pennsylvania. 



23. T. angulifasciella Dietz. Head white with a gray posterior tuft, half of 

 third segment of palpus black; scape white; shaft of antenna pale; shoulders 

 black; fore wing white; markings all black; heavy basal line reaching the fold, 

 the base of the costal edge black; a small antemedial dot, a heavy angulate median 

 fascia, extending to below the fold and sometimes weakly even to the inner 

 margins; outer part of wing strongly mottled with black, forming a large, cen- 

 tral dark patch. R, and R 5 stalked. 



Plummer's Island, Maryland. 



5 



