54 WILLIAM G. DIETZ, M. D. 



Forewings with pale spots or lines. 

 Without marginal spots. 



Head whitish or russet yellow. 

 Spot at end of cell. 



Head russet-yellow unomaculella. 



Head whitish niveocapitella. 



Without spot at end of cell leucoca|>it«"lla. 



Head dark fuscous seminolella. 



With marginal spots. 



No transverse lines or fascia. 



Spots numerous ophrionella. 



Yellow spot at anal angle xanthostielella. 



With entire transverse fascia imilatorclla. 



Dorsal part of forewings yellow maiMlariiiella. 



T. croceovertirella Ch.— Dyar's List, p. 571, No. 6500. — "Dark brown, 

 in some lights strongly bronzed, head saffron colored ; antennae dark brown ; 

 palpi a little paler than the head ; under surface silvery whitish, faintly tinged 

 with golden yellow; wings rather wide; cilia grayish, with two brown hinder 

 marginal lines, one at their base, the other beyond their middle. Al. ex. a little 

 over i inch. Kentucky." 



I have but little to add to Chambers' description ; there is a dark 

 brown spot on the second and third joints of the labial palpi exter- 

 nally ; antennae annulate with pale. The dark bronzed brown uni- 

 form color of the forewings is intermixed with paler filiform scales. 

 Hindwings wider than the forewings, purplish brown; cilia brown. 

 Some specimens have the antennae thickened with verticillate 

 scales. Not easily confounded with any other species known to me. 

 The type is in Cambridge. 



Exp. 10.0-12.0 mm. ; 0.4-0.48 inch. 



Hub. — Kentucky, Kansas (Onaga) ; Maryland (Plummers Isl.) ; 

 ( >hio (Cincinnati). 



T. thoracestrigella Ch. — Dyar's List, p. 572, No. 6523. 

 Mr. Chambers describes this species as follows : 



''Much like the above (croceorerticella), but larger, having an al. ex. of more 

 than 8 of an inch. The forewings are simply dark brown, without bronzy reflec- 

 tion ; and so are the cilia, which show no hinder marginal line; the hindwings 

 also are brown, though paler than the forewings. The head is more reddish saf- 

 fron, and a line of that color extends from the head to the tip of the thorax. 

 Otherwise it resembles the species above described (croceoverticella) ." 



Not known to me in nature. 



