AMERICAN EEPIDOPTERA. 19 



lowisli gray, strongly speckled with dark brown scales in their larger basal half, 

 the smaller distal half with ill-defined square dots. Hindwings pale gray, with 

 yellowish cilia. Underside of forewings dark grayish fuscous. Cotal cilia paler." 

 Exp. 18.0 mm.; 0.72 inch. 



The type, a female, in excellent condition is in the Cambridge 

 Museum. Zeller's description, while very minute, does scarcely con- 

 vey a concise idea, the heavy dash on the fold consists of several 

 transverse patches, which reach the inner margin and are more pro- 

 nounced on the fold ; the longitudinal dashes or stripes on the disk 

 are oblique, curved and nearly confluent on the fold, the cilia 

 strongly barred with dark fuscous, the bars broken by post median 

 dividing line. 



Hub. — Texaz (type); a S specimen in my collection from Kan- 

 sas I refer without hesitation to this species. 



S. inamffiiiella ZelL— Dyar's List, p. 575, No. 6550. 



" Parva, alis ant. oblongis, dilute luteis, fusco-maculatis, infra costam puriori- 

 bus, costa tota fusco-maculata, maculis postice sensim magoribus. % . 



"Agrees in habitus and general coloration with operosella. Abdomen slender 

 and relatively short, pale yellowish gray. Forewings two lines long, somewhat 

 wider posteriorly, with the same ground color as in operosella, but sprinkled more 

 profusely with larger dark brown scales which form larger spots; the latter more 

 pronounced upon the larger dorsal half of the wing, but are so irregular in shape 

 and more or less confluent as to permit of no concise description ; the space im- 

 mediately below the costa is less clouded by the darker scales ; the costal spots 

 begin at the base and increase in size as well as in interspace between them 

 towards the apex, and are mostly acuminate inwardly ; the inner margin is here 

 and there interrupted, dark brown (a character entirely wanting in operosella) : 

 cilia thickly sprinkled with brown scales, the latter forming ill-defined quadrate 

 spots. Hindwings relatively wider than in operosella but shows no appreciable 

 difference - in coloration from the last-named species." 



Exp. 10 ( — 11.0 mm. ruderella). 



The above description, translated from the original, agrees well 

 with the type in the Cambridge collection. However, a critical ex- 

 amination of the type of this species and that of Set. ruderella Zell. 

 leaves no doubt in my mind of their identity. The difference in 

 length and thickness of the labial palpi is scarcely appreciable, the 

 absence of lateral setae of the second joint in ruderella, merely acci- 

 dental, and the rather large spot in the middle of dorsal margin, a 

 too variable character to depend upon for differentiation. 



Hub. — Texas, type and specimen in collection at the Academy of 

 Natural Sciences, Philadelphia, and my own. 



TRANS. AM. ENT. SOC. XXXI. JANUARY, 1905. 



