October 1S92.] 



PS r CHE. 



339 



Normal stage I (First larval stage.) 

 Head slightly bilobed, rounded, shining pale 

 greenish with a few hairs; mouth brownish, 

 ocelli black; width 0.75 mm. Body slender, 

 no tubercles or humps, feet normal ; smooth, 

 shiny, pale yellowish green. Setae minute 

 rather long but not evident, color blackish. 

 As the stage advances, great growth takes 

 place, the color becomes green with a yellow 

 subdorsal line much as in the mature larva. 

 The body is transversely creased. Duration 

 of this stage about four days. 



Normal stage II. Not exhibited in any 

 specimen seen by me and probably does not 

 occur. 



Normal stage III. (Second stage.) Head 

 large, slightly bilobed, narrowing a little to 

 vertex and flattened in front; pale green, 

 hardly shiny ; mouth white, ocelli and tips 

 of jaws black; width 1. 4-1. 55 mm. Body 

 slender, smooth, no perceptible hairs; legs 

 normal; green, somewhat shiny, a broad yel- 

 lowish green subdorsal line; spiracles black. 



Normal stage IV. (Third stage.) Head 

 as before; width 2.0-2.35 mm. Body slender, 

 uniform green; a very distinct, rather broad, 

 pale yellow, subdorsal band from joint 2 to 

 the anal plate; spiracles black, faintly sur- 

 rounded by yellowish. Scattered, very small 

 and short setae. 



Normal stage IV. (Fourth stage in some 

 larvae.) Head large, flattened in front, very 

 slightly bilobed, smooth, not shiny, pale 

 green ; ocelli black, labrum white, jaws black 

 at tips, otherwise green; width 2.7-2.S mm. 

 Body transversely creased, leaf green with 

 yellow piliferous dots bearing very small 

 setae. A slightly darker dorsal line and 

 broad yellow subdorsal line from joint 2 to 

 the end of the anal plate. Spiracles black 

 with small white centers. 



Normal stage V. (Fourth or fifth stage.) 

 Head shaped as before, pale green, not shiny. 

 ocelli black on a white ground, labrum white 

 at tip, jaws green tipped with black, antennae 

 yellowish ; width 3.2-3.7 mm. Body yellow- 

 ish green with many yellow irregular ellip- 



tical granulations and a distinct broad yellow 

 subdorsal line, continuous from joint 2 to 

 joint 13 and bordering the anal plate, which 

 is rounded. Joint 2 is narrowly edged with 

 yellow in front. Spiracles dark brown, paler 

 centrally. Feet green, without any yellow- 

 spots. 



Normal stage VI. (Fifth or sixth stage.) 

 Head full, rounded, slightly shiny, and abso- 

 letely shagreened ; partly retracted under 

 joint 2 ; uniform leaf green, ocelli black on a 

 white ground, mouth parts whitish, jaws 

 straw yellow, tipped with black; clvpeus 

 small, triangular; width 4.6-4.8 mm. Body 

 cylindrical, full and rounded, tapering 

 slightly to the last segment which is smalier 

 than the rest, leaf green or whitish green, 

 densely covered with white, irregular, flat- 

 tened elliptical granulations which on the 

 venter become transverse streaks. In speci- 

 mens in which the ground color is suffused 

 with whitish, joint 2, joint 13 posteriorly and 

 the anal feet remain leaf green. A broad, 

 distinct, white subdorsal line, faint on the an- 

 terior part of joint 2. The anterior edge of 

 joint 2 and the border of the anal plate, are 

 bright yellow. Feet green, the abdominal 

 ones covered with white granulations, and a 

 white line before claspers. Spiracles orange 

 red, faintly bordered with white. The edges 

 of the white subdorsal band are not even but 

 more or less incised, on the anterior segments 

 being narrowly broken into contiguous ellip- 

 tical areas, or in some specimens broken 

 throughout the whole length. 



Cocoon. The larvae enter the ground to 

 pupate and form a rough cocoon of a few- 

 strong silken threads. 



Pupa. Cylindrical, tapering, rather thick 

 posteriorly to the thorax, the ends rounded, 

 most so anteriorly; movable sutures of abdo- 

 men deep; cremaster long, rather thick, 

 tapering and ending in two short divergent 

 points. Body shiny, densely punctured ; 

 cases creased and also shiny. Color black 

 with a shade of brown on the abdomen. 

 Length 22 mm. ; width 7 mm. 





