those of the others. The surmounting' tubercles are brown, tipped 

 with white, each bearing a hair. These tubercles form part of row- 

 one and the rest, arranged as the warts in Arachnis pida,'^ are very 

 small, whitish, and each bears a hair. The body "is colored as in 

 the previous stage, and is subject to considerable variation in the 

 depth of coloration from very pale brown to almost black in different 

 examples. The back of the head and a broad dorsal band on joints 

 2 to 4 are dark brown edged with whitish, and there is a narrow 

 subdorsal line on joints 5 to 1 1 bordered below by a paler shade. 

 The oblique dorsal lines on joints 6 to 8 are not distinct, but the 

 pale shades bordering them are evident, and the angular mark on 

 joints 10 and 1 1 has lost its bright yellow color and approaches very 

 nearly these pale shades in appearance, or is slightly pinkish. Joints 

 12 and 13 are a little paler than the rest of the body and a pale shade 

 passes up the back of the process on joint 5. There is a broad, 

 pale whitish ventral band, with which the thoracic feet are concolor- 

 ous; the abdominal feet are concolorous with the body, the anal 

 ones but little used, and usually held against the leaf, or but little 

 elevated. Spiracles pale brown, with a fine black border. A single 

 dark colored larva out of the brood of thirty, from which this de- 

 scription is drawn, had a white spot above the spiracle on joint 11, 

 and another smaller one before and below, in this character ap- 

 proaching the marking of lanassa lignicolor. Length of lar\'a about 

 30 mm. Duration of this, the last larval stage, six days. 



Cocoon. — Thin, rather tough, semi-transparent, parchment- 

 like. It is spun between two leaves. The larvae of the first brood 

 pupate in a few days, but those of the second brood pass the Winter 

 in the cocoon and pupate in the Spring. Only ten per cent, of my 

 larvae produced imago the same Summer. 



Pupa. — Cylindrical, the abdominal segments gently tapering, 

 capable of much motion. There is an elevation between the eyes 

 bearing two small tubercles and a curved row of cubical granulations 

 at the posterior edge of the thorax. Cremasters, two, parallel, sepa- 

 rate, rather thick and bluntly spinose. Color shining dark red- 

 brown. Wing cases creased and body punctured, but minutely. 



Food-Plant. — Hickory {Carya). Larvie from Dutchess 

 County, N. Y. 



It will be observed that this larva differs from the larvae of the 

 other known species of Schizura in lacking the lateral green patch 

 ■on the thoracic segments, and in the last stage the yellow dorsal 

 V-shaped mark. In the last character it approaches the' larva of 



* .See Entomologica Americana, vol. vi, p. 74. 



