LIFE HISTORIES OF AMERICAN MOTHS-DYAR. 279 



seem to imph-^ two broods, ))iit Mr. Cocinillctt tells nic that this may 

 mean onl}^ two larvie, representing- the dates at which they were found 

 and spun, respectively. If so, both may have been hibernated exam- 

 ples, though the latter date is very late. My lai-va> pupated innnedi- 

 ately after hibernation, early in May. The species is single brooded 

 both in my observations and by the dates given in Professor J. B. 

 Smith's monograph of the Deltoids. 



Egg. — Hemispherical, the edges a little rounded under, smooth, shin- 

 ing, regularly reticulate, the reticulations small and not conspicuous. 

 Trajisparent, resem])ling water, a little yellowish, the yolk granules 

 distinct and giving a somewhat opaque look. No ribs. Diameter, 0.6 

 mm. Laid singh^ on the backs of leaves of oaks and other trees, at 

 some distance above the ground. 



Stage I. — Little colorless semiloopers. Head slighth" bilobed. col- 

 orless, mouth brown; ocelli black; width, 0.2 mm.; ocelli, 6; 4 in a 

 semicircle al)ove and a pair below. Setj^j colorless, simple. Body 

 whitish, colorless, shining, the feet on joints 7 and 8 a little smaller 

 than those on 9 and 10; thoracic feet large. Setse long, rather coarse, 

 very minutely bulbous tipped, normal, the subprimaries absent. 

 Tubercles conic, somewhat prominent, but concolorous and obscure. 

 Part of the hairs curve forward. No shields visible. The larvae ate 

 the egg shells and afterwards dead leaves, refusing fresh ones. Each 

 spun a line web about itself. Later the tubercles appeared round, 

 brownish black, small; head, cervical shield, and anal plate brown, 

 slighl}" cornitied. Body colorless, transparent. 



Stage II. — Head about O.i mm., sordid brownish white, not shining, 

 ocelli dark, setaj pale. Body slightly flattened, translucent, sordid 

 white, joint 12 a little enlarged. Tubercles small, brown, normal. 

 Feet of joints 7 and 8 small. Shields not cornilied, concolorous with 

 the body, their tubercles also brown. Feet pale. Segmental incisures 

 slight!}" folded. Tubercle iv below the spiracle. 



Stage III — Head about 0. 6 mm. , round, pale yellowish brown, dotted 

 reticulate with dark brown. Body dark sordid yellowish brown, finely 

 dotted reticulate with red brown, forming faintly a dorsal line and 

 leaving spaces around the small blackish tubercles. Shields not corni- 

 fied, feet equal, setiB pale and small. 



Stage lY. — Head 1 mm., pale brown, smoky, very o])scure]y flnely 

 reticulate. Body all leaf brown, a yellow ground tinely reticulate with 

 dark red l)rown, uniformly and neatly, the onh^ mark a faint brown 

 dorsal line. Tul)ercles small, black, seta? inconspicuous, vi and vii 

 white and coarser than the others. Another brood were similar, but 

 rather heavil}' smoky, obscuring the markings. 



Stage Y. — Head about 1.4 mm., pale brown, finely dotted reticu- 

 late, an inverted V mark above the clypeus and a vertical mark, form- 

 ing indistinct lines. Body somewhat flattened by l)eing retracted in 



