26 THE CANADIAN ENTOMOLOGIST. 



scales ; in some specimens this sudden darkening does not take place ; it 

 is gradual up to the line of dark scales. It is unimportant whether we 

 say'a cinnamon fascia margined behind with white, with Prof. Zeller ; or a 

 white fascia dark margined before, as I have it. This fascia is sometimes 

 in bifasciella much curved, as Prof Zeller has it, while in other specimens 

 it is almost exactly straight. The white fascia of Prof Zeller is more 

 distincdy defined behind than i have ever found it in bifasciella, where it 

 gradually passes into the pale cinnamon yellow which increases in intensity 

 to what I have called the second fascia ; this second fascia sometimes 

 crosses the wing as in Prof. Zeller's figure, but is never so wide or so dis- 

 tinctly outlined behind, but perhaps more frequently it is widely interrupted 

 in the middle so as to make a costal and opposite dorsal white streak, as 

 I have elsewhere mentioned, and in a specimen now before me it crosses 

 one wing, while in the other wing it is simply represented by a costal 

 streak hardly reaching the middle : the dark costal triangular spot of 

 Prof. Zeller is distinct in every specimen that I have examined, but I have 

 never found in any specimen the opposite elongate, narrow, somewhat 

 - paler dorsal triangle which in the figure extends to the apex of the costal 

 triangle. The small discal dot of the middle of the wing is sometimes 

 present, and sometimes absent in bifasciella. I think the wing behind the 

 first fascia is more correctly described as pale saffron somewhat suff"used 

 and dusted with brownish, than as cinnamon ; but some specimens are 

 much paler than others. In bifasciella tlte costal margin behind the second 

 white fascia is fuscous (but little paler than the costal triangular spot 

 before it), and much darker than the remainder of the apical part of the 

 wing^ and forms a definite spot much darker than it is represented by 

 Prof Zeller ; and he represents a narrow whitish line extending along the 

 base of the dorsal ciliae, widest at the apex of the wing and narrowing to 

 a point at the beginning of the dorsal ciliae, which I do not find indicated 

 in any of my specimens of bifasciella ; and the hind wings of this species 

 are pale silvery 3^ellowish, or perhaps as properly, pale luteous. 



If my specimens do not belong to Prof Zeller's species, the resem- 

 blance in coloration is astonishing, and if they do belong to it, then the 

 form and neuration of the wings place it among the Elachistidcs, and not 

 in Qicophora. 



(To be Continued.') 



