Dec, 1902.1 DyAR : RiKVEW OF THE GeNUS EtHMIA. 203 



18. Spots rounded, not produced into dashes apicipunctella 



Many of the spots elongated into rounded dashes 19 



19. Ground color of fore wing white throughout 20 



Fore wing irrorate with black scales on costal third zelleriella 



20. Larger ; two dashes and spot on outer half of wing centrally are separate. 



longimaculella 

 Smaller; these dashes and spot joined into a long dash coranella - 



In the following notes on individual species the references are 

 omitted as I have given them in Bulletin 52, U. S. National Museum, 

 which is now in press. The present paper, however, was begun after 

 the Bulletin was in type, so that the result of this work is not included. 

 Ethmia albistrigella JVa/s. 



This species is very distinct with its black wings and narrow white 

 stripe. The dorsal plate of the male genitalia is broadly furcate, the 

 branches wide and rounded. The National Museum has specimens 

 from Placer Co., Cal., June (Koebele) ; Siskiyou Mts., 6,000 ft. 

 (coll. Walsingham) ; Palo Alto, Cal. (Dr. William Barnes) ; Los 

 Angeles, Cal. ( Coquillett), and Yosemite Valley, Cal. (Dyar). 



Ethmia fuscipedella JFa/s. 



This species is likewise unmistakable. The dorsal plate of the 

 male genitalia is broad, widely cleft at tip, the branches rounded. Our 

 localities are Ames, Iowa (Osborn ), and West Point, Neb. 

 Ethmia monticola IP'a/s. 



A single specimen in poor condition from East Portland, Oregon, 

 May 25, 1 89 2 (Dyar), seems referable here. 

 Ethmia arctostaphylella JVa/s. 



In the male the anal plate is moderately broad, curved over, the 

 broad points well separated and deeply, roundedly incised between. 

 Side pieces broadly strap-shaped, curved inwards and a little upwards. 

 Besides two specimens from Lord Walsingham's collection the National 

 Museum has one from San Bernardino, Cal. (Coquillett). 



Ethmia obscurella Be///. 



Indistinguishable from arctostaphylella except by the general darker 

 coloration. The male genitalia show no appreciable differences. We 

 have only Mr. Beutenmtiller's types. 

 Ethmia mirusella Chainb. 



Psecadia albicostella Beut. 



I have one worn specimen of mirusella from Lord Walsingham's 

 collection and Mr. Beutenmiiller's type of albicostella. I can see no 



