248 William T. M. Forbes 



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



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

 and dull. Some yellow on vertex and thorax; a half -lunate 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 CEcophora; 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 

 (CEcophora, in part) 



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

 pecten; fore wing with R 4 and R 5 completely fused; hind wing with M 3 and CUj 

 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 



(CEcophora; 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 x 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. 



New 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 

 tvith 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 M t than M 3 in both wings. 



