212 THE CANADIAN ENTOMOLOGIST. 



Hind wing paler gray than fore wing, slightly darker around termen, 

 cilia paler, with a faintly darker basal line. Under side the same, a black 

 dot on costa before apex. Under side fore wing darker gray, with a few 

 black dots on costa before apex. 



Four specimens, Rounthwaite, Man.., July ii and 12, L. E. Marmont. 



Co-type in U. S. Nat. Mas., Cat. No. 9870. I am indebted to Mr. 

 Busck for correcting my generic determination of this species. 



Mompha Claiidiella, sp. nov.^ — Expanse, 20 mm. 



Head and patagia white, with a faint rosy tinge; palpi white, with 

 a few dark scales on outside of tuft of second joint ; antenna fuscous, with 

 a whitish bloom ; thorax leaden-black in centre, narrowly edged in front 

 with rosy-white ; on posterior half there is a patch of deep rosy-white, and 

 the middle scales at their posterior end are of the same colour ; abdomen 

 gray, anal tuft with an ochreous tinge ; legs cream-white, heavily shaded 

 with black in front. 



Foie wing white, with a faint rosy tinge, shaded with bluish-gray on 



inner fifth of costa, and a shade of the same colour through middle of 



wing from inner tuft to end of cell. A small shade of this colour on outer 



third of costa, and a similar one below it on dorsal margin. The upper 



half of termen and apex are shaded with gray, in which are sprinkled 



whitish, black and brown scales ; there is a dark brown dot in cilia at 



apex, and two before apex in costal cilia, and one below apex in the long 



cilia ; the outer ends of the apical cilia are gray, otherwise the cilia is 



ochreous. The tufts are very large and high ; the three most prominent 



ones are white towards base and ferruginous at their' outer ends. There 



are two close to base of wing, one in middle of wing, and one below it 



and obliquely outward from it close to dorsal margin ; before the latter, 



and in a streak following the former, are broad black scales ; the third is 

 between fold and dorsal margin in middle of wing ; it is also followed by 

 a patch of broad black scales from its upper end. There is a smaller but 

 similar tuft at outer fourth of wing, on lower margin, and a small tuft 

 above the third large one on upper half of middle of wing. Below costa, 

 at inner third, is a small tuft of black scales. 



Hind wing dark gray, cilia ochreous, the same shade as cilia of fore 

 wing. Under side both wings smoky black, with a whitish streak through 

 middle of hind wing, and the apex of both wings whitish. 



Three specimens, Rounthwaite, Manitoba, July 1 1 and i 2, collected by 

 Claud Marmont, whose name I am glad to give to this very beautiful species. 



Co-type in U. S. Nat. Mus., Cat. No. 9871. 



Mailed June 4th; 1907. 



