432 William T. M. Forbes 



sisting of two or three spots; and a lead-gray bar between the second and third 

 rows. 15 mm. 



April and May; September. Perhaps not rare, but confused with members of 

 the circulana group. 



Hudson Bay district to Virginia, west to Manitoba. New York: East New 

 York, Long Island. 



3. T. parmatana Clemens. Dull blackish, sometimes with some scattered whitish 

 scales and with obscure black marks. Costa with some paired white striae on 

 outer half. Middle of inner margin with a white patch or a group of strong 

 striae, the most basal being strongest and defining the dark basal area. Speculum 

 mixed white and silver, with a couple of black dots, its inner boundary erect; 

 much straighter than usual. Base of fringe dusted with black and white. 10 mm. 

 ( crispana Kearf ott etc., not Clemens ) . 



June to September. 



New Jersey to Missouri and probably generally distributed. " New York " 

 (Edwards). 



4. T. alterana Heinrich. Similar to T. parmatana. Ground somewhat paler 

 fuscous; white markings more extensive, the median patch frequently diffuse on 

 upper and outer side, its inner side and the speculum sharply denned. Apical 

 region concolorous fuscous, cut, as usual, by fine paired white striations. 9-12 mm. 



August. 



Massachusetts to Maryland. New York : Ithaca. 



5. T. marmontana Heinrich. Similar to T. parmatana. Fore wing with ground 

 perhaps slightly richer brown, the costal edge toward apex and upper part of 

 outer margin overlaid with shining yellow-brown in favorable light, interrupted 

 by the paired white striae, which are denned with black. 



July and August. 



Manitoba. New York : Ithaca. 



6. T. formosana Clemens. Male clay-color, striate or heavily shaded with brown; 

 costa obliquely streaked with silver on outer two-fifths, the last streak parallel 

 to outer margin and at a sharp angle to the others. Speculum well marked, 

 yellow, almost surrounded with silver, and with three black streaks. Basal line 

 in fringe weak. Hind wing mouse gray with outer part of fringe white. Female 

 with the same marking's, but almost wholly suffused with brown; with slight 

 or no pale striation. Costal silver streaks weaker, and fringe more tinted with 

 brown than in male. 20 mm. ' 



End of May to June; locally not rare. This species is closely related to the 

 type of Thiodia (aspicliscana) . 



Quebec to New Jersey. New York: Rock City (Cattaraugus County), Ithaca, 

 McLean, Karner, Ramapo, Watchogue. 



7. T. ferruginana Fernald. Sexes similar. Rusty brown, shading into chocolate 

 brown outwardly; fringe concolorous with outer portion of wing. Speculum repre- 

 sented only by a couple of streaks of rather more shining scales. Hind wing 

 chocolate brown, with paler fringe. 13— x5 mm. 



May and June. 



The male of this species is easily recognized, but the female cannot be certainly 

 distingtiished from T. roseoterminana ; it is usually smaller and brighter than the 

 latter. 



Maine to New Jersey. New York: Black Brook (Clinton County), Rock City 

 (Cattaraugus County), Ithaca, McLean, Staten Island. 



8. T. roseoterminana Kearfott. Male clay-color, lightly and irregularly streaked 

 with light brown ; the strongest streak below the cell. Outer part of wing shading 

 into rusty orange, streaked with rust-brown. A continuous chocolate-brown ter- 

 minal band, not contrasting, preceded below by a slight lead-gray streak. Fringe 

 concolorous with outer part, or a little paler. Female with basal half rusty 

 orange shading into chocolate brown outwardly, with the same marginal mark- 



