248 WILLIAM T. M. FORBES 



Toronto, Ontario. and west to British Columbia and California. 



5. S. coloradella \Yalsingham (variety). Smoky gray -brown, somewhat powdery 

 and dull. Some yellow on vertex and thorax; a half-Innate spot on inner margin 

 extending a third way across the hind wing. (In the northern form there is a 

 narrow yellow dorsal edge extending from this spot to the base of the wing, and 

 continued as a pair of streaks on the thorax.)- 15 mm. 



The typical form of this species occurs in Colorado and lacks the yellow dorsal 

 streak. It is very close to sulphurella, the type of (Ecophora; in fact all the 

 species here listed, except argenticinctella, might well be transferred to that genus. 



My only date for this species is July 28. 



Parry Sound, Ontario; British Columbia. 



12. DECANTHA Busck 

 ((Ecophora, in part) 



Similar to Schiirermuelleria, but palpi not so long; antennae with strong 

 pecten; fore wing with R^ and R 5 completely fused; hind wing with M 3 and Cu, 

 separate. 



1. D. borkhausenii Zeller. Blackish with yellow thorax, rounded patches near 

 base and middle of fore wing; a less regular transverse subterminal bar, and a 

 smaller postmedial spot on inner margin; the spots more or less white-edged. 

 Fringe yellow, hind wing brown. 15 mm. (boreasella Chambers). 



Caterpillar translucent white, with yellow-brown head, cervical shield, etc.; under 

 bark of pine, in June; the moth emerging in June and July. 



Europe. Cohasset, Massachusetts; District of Columbia; Arizona; British 

 Columbia. New York: Ithaca. 



American specimens (boreasella) are aberrant, and may represent a distinct 

 species. 



13. FABIOLA Busck 



((Ecophora; Borkhausenia, in part) 



Similar to Borkhausenia, but lacking one radial vein. No pecten; palpi .slender, 

 third segment nearly as long as second. Male antennae with long cilia; tongue 

 developed, M 3 and Cu t of hind wing connate. 



1. F. shalleriella Chambers. Dark brown, broadly shaded with golden yellow, 

 but leaving the edges of the markings narrowly brown. A white antemedial 

 fascia, broadening regularly to inner margin, erect, and with brilliant blue 

 iridescence toward costa; three or four large, partly confluent, black spots in 

 lower half of median area, each centered with a metallic blue spot. An erect 

 blue subapical fascia across the wing, followed by a large cream-white spot on 

 costa. Fringe dark brown, whitish at base toward anal angle; hind wing and 

 body dark brown. 12 mm. 



May southward, June in Pennsylvania. 



Xew Jersey to western Pennsylvania and Georgia. 



14. (ECOPHORA Latreille 

 (In part; Dasycera Haworth) 



Similar to Borkhausenia; no ocelli; eyes small; antenna thickened more or less 

 with scales toward base, and heavily ciliate in male (cilia three times as long as 

 segment) ; palpi smooth, maxillary palpi distinct; tongue weak, scaled to its 

 tip. Fore wing broad toward tip and bluntly rounded; hind wing broad-lanceolate; 

 M 2 quite variable, often nearer Mj than M 3 in both wings. 



