478 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 



€one, toward the larger end. When about to pupate, the caterpillar 

 draws a portion of a leaf around it, lining it with silk, thus forming a 

 delicate cocoon. 



Larva. — Bodj^ spiudle-sbaped, and somewhat stout in proportion to the length. Pea 

 green, about the color of the under side of the leaves of the bass-wood. The usual 

 warts are present, of a dull brownish color and emitting pale hairs. The head, tho- 

 racic shield, and legs are pitchy black, while the mouth-parts are a little lighter, and 

 there is a small black spot on each side of the first segment back of the head, just in 

 front of the spiracle. The anal plate is dull brownish. Length, 25»n™ when at rest, 

 and 30™™ when in motion. (Fernald, Can. Ent., xvi, p. 25.) 



7. Lithocolletis lucetiella* Clem. 



The larva mines the under side of the leaf of Tilia americana (bass- 

 wood) in July, September, and October. The mine is most frequently 

 nearly square in form, and when completed both cuticles of the leaf are 

 left nearly transparent, and the leaf is not folded. The " frass " is cast 

 on the edges of the mine. It weaves an oval cocoon, tbin enough, how- 

 ever, to permit the pupa to be seen through the cuticle. The imago 

 appears in August and Maj . 



Larva.— The larva is cylindrical. The head pale brown ; the body pale greenish 

 ■white with a series of dorsal brown spots from the third ring posteriorly. 



Moth.— AutcnuiS) silvery. Head, tuft, and thorax silvery. Anterior wings silvery 

 from the base to the middle, and thence to the tip golden, with a golden costal streak 

 from the base not extended to the middle. About the middle of the wing is a silvery 

 band, broadly margined internally with golden, and with a viinute hJack point on the 

 costa internally ; a costal silvery spot, margined internally by a black spot, nearly op- 

 posite to which i,8 a large dorsal silvery streak margined internally by an 0&?igMe6?acfc 

 line; near the tip is a costal, silvery, unmargined streak curving to the tip; cilia 

 golden at the tip, and on inner margin silvery. No apical spot nor hinder marginal 

 line. Hind wings silver-gray, cilia the same. Abdomen blackish, tipped with silvery 

 gray. (Clemens.) 



8. Coleophora tiliwfoliella Clem. 



The larva feeds on the leaves of the linden from the beginning to the 

 latter part of May, and enters on pupation in the latter days of May or 

 early in June. 



The case is black, somewhat pistol-formed ; straight along the upper 

 edge, turned abruptly down so as to form a handle-like appendage be- 

 hiud, with a toothed, flattened projection about the middle of the under 

 edge, whence to the mouth of the case it is cylindrical. 



At this date the larva does not mine the leaf, but eats holes in it, de. 

 vouring its substance. The case is fixed to the under surface of the leaf, 

 and is easily seen, even on the leaves of the higher branches. 



Larva. — The body of the larva is dull, dark-brown and the dorsal plates and head 

 black. (Clemens). 



*I received five specimens of this from Dr. Clemens; it is very distinct from any 

 £uropean species. The exp. al. (omitted by Dr. Clemens) is 3^ lin. — H. T. Stainton. 



