292 WILLIAM T. M. FORBES 



4. No oblique antemedial fascia; wings smoothly scaled. 



5. A sharply defined blackish spot on fold near middle. .11. glandiferella. 

 5. No such spot. 



6. Palpus with third segment yellowish ; brown shades on fore wing. 



10. belangerella. 



6. Palpus with third segment pure white; fore wing dusted with 

 black and gray on a pearl-white ground. .. (Glauce pectenalceella) . 



1. T. longifasciella Chambers. Dark purple -brown. Head white; palpi purplish 

 with white annuli on third segment at base and end; fore wing with a white fascia 

 from costa near base, running obliquely across to inner margin, then along inner 

 margin almost to apex, but constructed or interrupted at anal angle. 15 mm. 

 (curvistrigella Chambers, obliquefasciella Chambers). 



April and May. 



New York to Oregon and Texas. New York: East Aurora, Crosby, Ithaca. 



2. T. latifasciella Chambers. Powdery gray, the base blackish; a broad paler 

 (typically white) antemedial fascia, as wide as breadth of wing, edged on both 

 sides with raised black lines. An irregular postmedial line, weak or broken in 

 middle, with a whitish shade beyond it toward costa, and typically a large white 

 patch between it and end of cell; a double black tuft at end of cell. 13 mm. 



May. Larva on oak; a leaf-roller. 

 Massachusetts to North Carolina and Missouri. 



3. T. quinquecristatella Chambers. Deep brown, with a little purple iridescence; 

 face dusted and shaded with whitish; palpi light powdery gray, with black bars; 

 legs dark brown with white bars. Fore wing with three pairs of somewhat darker 

 tufts; the anterior of each pair a little farther out, and each with some white- 

 tipped scales; apical region dusted with white, indicating the postmedial line at 

 the margins. No black spot at base of costa. 16 mm. 



May; July; October. Larva a bud worm on huckleberry. Slender; yellowish 

 white; head and cervical shield pale yellow; body showing the green dorsal vessel. 

 What is apparently the same thing also occurs on Comptonia. 



Generally distributed eastward. 



4. T. quercinigracella Chambers. Powdery gray: palpi and antennae also banded 

 in two shades of gray; fore wing with a heavy black bar from costa to fold near 

 base, nearly interrupted in middle, and containing two large tufts. Black basal 

 spots at costa and in fold; a black spot at middle of costa, with an oblique spot 

 in cell and a streak in fold opposite;- a black postmedial spot on costa, connected 

 to a similar spot in fold by the black discal bar. Apex blackish, with an obscure, 

 sinuous, pale, postmedial fascia. Fringe powdery gray. 12 mm. 



Caterpillar on black-jack and other oaks, in late June and July. White with 

 a black bar on each side of head; a yellow cervical shield with black posterior 

 edge and black tubercles; at maturity developing red transverse bands on the 

 middle of the segments. 



Generally distributed. New York: Ithaca. 



5. T. fuscopunctella Clemens. Very closely related to the last species and indis- 

 tinguishable when rubbed. Antemedial band usually broken, the tuft nearer 

 costa being weak and well separated from the other; ground slightly paler, and 

 base more contrastingly marked. 



Caterpillar with T. quercinigracella, similar to it, but with two ocellar dots on 

 each side of head instead of a single bar, and incisures instead of mid-segments 

 striped with red at maturity. 



Pennsylvania and District of Columbia. 



6. T. querciella Chambers. Very close to T. quercinigracella; ground whiter, 

 antennas and palpi more distinctly ringed with white; posterior tuft of thorax 

 yellow. Fore wing marked as in the last two species; a large proportion of scale 

 white, with a gray bar only. 12 mm. 



