THE CANADIAN ENTOMOLOGIST. 145 



costa ; a golden fascia in the middle, furcate on the costa, one arm 

 reaching the costa before the middle, the other a little before the apex ; 

 between them are generally a few golden spots on the costa ; beyond is 

 another golden fascia, which, indeed, occupies the whole apex except a small 

 white spot on each margin. Cilia pale grayish brown." (The italics are 

 mine.) " Posterior wing gray with paler cilice. (The anterior wings are 

 sometimes so much suffused with pale golden that the markings are almost 

 obliterated.) Common among Birches in June and July. The larva 

 feeds under the bark and in the young shoots of the Birch in March and 

 April. Al. ex. 6 lines." 



The single specimen before me is silvery white and the fasciae are 

 brown, golden, or topaz red with golden, according to the direction of the 

 light. In lieu of that part of Mr. Staintons description which I have 

 italicised, I would say that in the apical part of the wing is an oblique 

 broad fascia, nearest to the apex on the costal margin, where it contains 

 a white streak, and it sends a branch to the dorsal ciliae so as to enclose 

 a white spot at their base. Behind this fascia a narrow curved white one 

 crosses the wing, and at the apex is a golden spot. It is a more hand- 

 some species than A. andereggiella, next after which as to beauty I would 

 place A. visaliella Cham. A. undulatella Cham, and A. Belatigerella, 

 described below, are plain species. 



The following are new species : 



Argyresthia Belangerella. JV. sp. 



Head, antennae and palpi white, except that the antennae are 



annulate with dark brown and the face is a little suffused with yellow. 



Thorax on top and dorsal margin of the wings beneath the fold white, 



extending nearly to the tip. The other portions of the wings and sides 



of the thorax above them grayish brown. The grayish brown hue crosses 



the fold a little in the basal part of the wing, and the white crosses it a 



little at the base of the dorsal ciliae. There is a distinct dark brown 



dorsal spot just beyond the middle, but it does not entirely interrupt or 



cross the white part, and there are two smaller brown spots on the fold, 



near to and just behind it. There is also a somewhat indistinct brown 



'spot about the middle of the costal margin, behind which and extending 



to the apex, at the base of the costal ciliae, is a row of alternate white 



and dark brown spots, and there are two brown spots within the dorsal 



ciliae in that part of the white which crosses the fold as above stated 



