282 COLEMAN T. ROBINSON. 



itudinal black line extending from the base through the middle to just 

 before external margin at one third below the apex. A raised tuft of 

 black scales on the black line at basal third and a similar one at outer 

 third. A small black tuft on the disk above the line and a similar one 

 beneath near external margin. The general surface of the wing cover- 

 ered with tufts of gray scales.' 



Posterior wings shining fuscous, paler beneath. 



Expanse, % 24. 9 26 mil. 



Halntat. — Canada West, (J. Pettit). 



In two of the specimens received from Mr. Johnson Pettit of Grims- 

 by, C. W., the black tufts are obsolete and the line nearly so except on 

 the center of the disc. 

 Teras placidana, n. s. (Plate vii, fig. 68.) 



Palpi, head and thorax very pale ashen-gray. Anterior wings pale 

 ashen-gray, with two minute raised tufts of black scales at basal third, 

 respectively just above and below the middle of the wing. Beyond, an 

 oblique line of raised gray scales arises on costa before the middle and 

 ends on internal margin just beyond the middle. This line contains a 

 few black scales, an aggregation of which on the disc forms a distinct 

 dot. The outer portion of the wing contains a few black irrorations 

 which are most prominent along the costa and near the external margin. 

 Fringes concolorous. Posterior wings pale shining fuscous with very 

 pale fringes. 



Under surface of anterior pair dark fuscous, of posterior pair whitish. 



Expanse, 9 19 mil. 



Habitat. — Pennsylvania, (Theo. Bunte). 



Teras trisignana, n. s. (Plate vii, fig. 69 9 •) 



Palpi, head and thorax white. Anterior wings white, slightly rough- 

 ened transversely with dots and lines of elevated scales. The costa is 

 dotted with aggregations of blackish scales, two of which, larger than 

 the rest, just before and beyond the middle, with a larger irregular spot 

 beneath them on the disc, enclose a triangular space. Fringes white. 



Posterior wings above and beneath glossy fuscous. Under-surface 

 of anterior wings fuscous with whitish margins. Abdomen white above 

 and beneath. 



Expanse, 9 18 mil. 



Habitat. — Western Virginia, (^Jas Ridings). 



Teras semiannula, n. s. (Plate vii, fig. 70 9 •) 



Palpi, head and thorax gray, the latter tinged with brown. Ante- 

 rior wings with numerous scattered reddish-brown scales. A large ir- 



