6 WILLIAM G. DIETZ, M. D. 



towards the apex, the latter rounded, dorsal margin more strongly curved toward 

 the apex, dusted more or less densely with dark fuscous scales, aggregated into 

 more or less, transverse singulations ; costo-hasal part of wing dark fuscous, a 

 row of five or six costal spots before the middle, beyond the latter are five larger 

 costal spots, decreasing in size; a large patch at end of cell, a large irregular 

 discal patch at one-third, another spot at one-half and one above the fold, all the 

 larger patches more or less distinctly confluent, the first two or three larger 

 costal spots beyond the middle are also connected with the large spot at end of 

 cell. A row of spots along base of dorsal cilia of which the first one is usually 

 larger and more conspicuous; veins generally darker. Cilia concolorous with 

 broad, irregular median dividing line. Hind wings grayish ochreous ; cilia with 

 dark subbasal line. Abdomen above ochreous fuscous, anal brush ochreous. 

 underside and legs dusted with fuscous. 

 Exp. 16.0-20.0 mm. 0.64-0.8 inch. 



Hub. — Pennsylvania, New Jersey (Montclair, Kearfott) ; Massa- 

 chusetts. 



Probably occurs over the whole northern Atlantic district. Dr. 

 Clemens' statement, that the male has more of the yellowish hue 

 than the female, I cannot verify; a male specimen in my collection 

 has the ochreous ground color almost obscured by dark fuscous scales. 



A. COlortMlella n. sp. — Very similar in coloration and markings to A. 

 efrenatella and from which it differs in the following points : Larger size ; general 

 color more brownish ochreous; labial palpi scarcely darker externally. Fore- 

 wings narrower, more elongate and more pointed at the apex, markings less pro- 

 nounced in color and less confluent; a conspicuous dash beneath the fold near 

 the base, sometimes split into spots. 



Exp. 20.0-23.5 mm. ; 0.8-0.94 inch. 



Hah. — Colorado (Denver, Durango, Co.) ; Arizona (St. Pita 

 Mountains) ; California (Kaweah). 



A. arizonella u. sp. — Face and labial palpi whitish ochreous, second joint 

 of latter dark fuscous externally, third joint a trifle longer than the second, 

 slightly fuscous externally, scarcely compressed. Vertex and antennae sordid 

 ochreous. Thorax grayish-ochreous, patagia fuscous anteriorly. Forewings elon- 

 gate ; costa slightly arched from the base, a little more so towards the apex, 

 latter obtusely pointed; ground color pale ochreous, markings dark brown and 

 almost confined to the costal half of the wing, the apical part of the wing and 

 the subplical space conspicuously free except some small dots and marginal 

 spots; a large patch at base of costa extending to fold, beyond this a row of 

 spots along entire costa, subconfluent in the basal half, two of these spots at 

 about two-thirds the wing-length are larger and connected with a spot at end of 

 cell, beyond these are three distinct, though smaller spots; from the basal patch 

 extends a row of irregular patches toward the spot at end of cell and between 

 these and the costa the space is dotted with smaller spots ; a row of spots along 

 the base, of dorsal cilia and around the apex. Cilia pale with darker line. Hind- 



