June, I902.] Kearfott : On North American Choreutes. 122 



Choreutis extrincicella Dyar. 



1890. Choreuth extrincicella Dyar, Can. Ent., Vol. XXXII, p. 86. 

 1890. Choreutis extrincicella Fernald, Can. Ent., Vol. XXXII, p. 242. 

 Original description : 



< ' Light brown, head and palpi whitish. Fore wing with basal half brown, crossed 

 by a broad, straight, white line with a few silvery scales outwardly on costa. Ter- 

 minal half of the wing nearly white, except narrowly along outer margin, streaked 

 above with longitudinal, somewhat cuneate, lines of black scales, below containing a 

 single elongate, rounded, black patch with two groups of silvery scales ; similar scales 

 on outer border of white patch ; outer half of fringe white. Hind wings pale brown. 

 Expanse 12 mm." 



"One male. Wisconsin. U. S. Nat. Mus., type No. 4427." 



The species is more unlike the general bjerkafidrella type than any 

 of the genus. It is a very beautiful species and Dr. Dyar fortunately, 

 when making his description, had before him an almost faultless speci- 

 men. It can be recognized at once by the large amount of white on 

 the fore wings. 



The largest patch of white almost entirely covers the outer half, 

 extending from costa to hind margin. Near the anal angle is a 

 velvety black spot, ornamented with metallic scales, this spot en- 

 croaches on and appears to be laid on the white. The outer margin 

 is light fuscous. The inner edge of the large white patch is bounded 

 by a broad almost straight fuscous band, next towards the base is a 

 narrower whitish band, the base of wing is fuscous. All of these 

 bands and colors extend from costa to hind margin. Hind wings are 

 immaculate and under side of all wings are free from whitish lines 

 and dashes and very pale in color. 



It can be identified by : ( i ) Very large white patch on outer half 

 of fore wing; (2) a single rectangular velvety black spot on this 

 white area, near hind angle is also a very small black spot > shaped. 

 This is close to margin and just above the large black spot. (3) Hind 

 wings immaculate. (4) Under side of all wings very pale and free 

 from whitish marks. 



Choreutis occidentella Dyar. 



1890. Choreutis occidentella Dyar, Can. Ent., Vol. XXXII, p. 86. 

 1890. Choreutis occidentella Fernald, Can. Ent., Vol. XXXII, p. 242. 



Original description : 



"Grayish brown; basal half of wing of this color, with a curved white line 

 across its center. Terminal half of wing filled, except somewhat narrowly along 

 outer margin, by a large whitish patch, irrorate with brown scales, containing above 



