314 AMERICAN MICRO-LEPIDOPTERA. 



Missouri. 



The tentiform mine of this species occurs on the lower surface of 

 leaves of Symphoricarpos vulgaris Michx. Pupation takes place 

 within an ovoid white silken cocoon. Mr. Chambers (Gin. Quart. 

 Jn. Sci., ii, 99, 1875) quotes Miss Murtfeldt's description of the 

 early stages of this species. 



Lithocolletis I iliacella Chambers. 



Plate XXII, Fig. 24. 

 Lithocolletis tiliacella Chambers, Can. Ent., iii, 56, 1871. Dyar, Bull. 52, U. S. 



Nat. Mus., 1902, No. 6310. 

 Syn. tiliseella Chambers, Cin. Quart. Jn. Sci., i, 203, 1874. tiliella Walsingham, 



Ins. Life, iii, 328, 1891. 



"Glistening, snowy white; middle portion of the anterior wings from near 

 their base to the base of the cilia pale golden, which is produced along the costa 

 to the base three broad silvery white fasciae dark margined internally ; the 

 dark margin of the third fascia widely interrupted in the middle, and the pale 

 golden very indistinct, sometimes not visible, behind it; the second fascia is 

 about the middle of the wing. Alar expanse one-fourth inch." 



Chambers has sufficiently characterized this species by the short 

 description above. 



The larvse belong to the cylindrical group and form almost cir- 

 cular tent mines on the upper side of Tilia Americana L. The mine 

 is white, densely speckled with dark brown. The pupa of the sum- 

 mer brood is suspended in a very slight silken web ; in the brood 

 remaining through the winter in the pupal state, a denser cocoon is 

 spun, which is attached above and below. 



The species is common throughout the Atlantic States. 



Lithocolletis oregonensis Walsingham. 



Lithocolletis oregonensis Walsingham, Ins. Life, ii, 117, 1889. Dyar, Bull. 52, U. 

 S. Nat. Mus., 1902, No. 6309. 



"Antennae closely annulate with white and brown. Palpi whitish, dusted 

 with gray externally. Haustellum yellow. Face grayish, frontal tuft grayish 

 fuscous. Thorax golden saffron. 



" Forewings golden saffron, with four rather shining white fasciae, and a semi- 

 circular white apical streak inclosing a black apical spot and reaching through 

 the cilia on tbfe costal and dorsal margins; the first fascia is situated within one- 

 fourth the wing length, the dorsal portion of it commencing nearer to the base 

 than the costal portion and proceeding obliquely outward to a little above the 

 fold, the shorter costal portion only being conspicuously dark margined inter- 

 nally ; the second fascia, just before the middle, is distinctly curved, almost an- 

 gulated outwards, and has a conspicuous margin of black scales on its inner 

 side; the third fascia, commencing before the costal cilia, is less curved than the 



