Packard.] 
548 
[Feb. 19, 
Second stage . — Length 10-11 mm. The head is now propor- 
tionately smaller than before, the dark spots more exaggerated, and 
the twin dorsal tubercles on the prothoracic and first and eighth ab- 
dominal segments, while not much larger than the others, are much 
darker, reddish-brown, with pink stains around their bases, and 
thus contrast with the others which are yellow. The two double 
dorsal pink lines, connecting the prothoracic and first abdominal 
tubercles, also the four short lines in front of and behind the tu- 
bercles, on the eighth segment, are now distinct, also the subdor- 
sal, white lateral band on the outer side of the dorsal tubercles ; 
while the subspiracula.r, narrow, pale-yellow line is distinct. The 
stigmata on the eighth abdominal segment is twice as large as the 
others. The hairs are very long, black and tapering. I cannot 
see any battledoor setae in this stage. The anal legs are provided 
with crochets. 
Third stage . — Length 12-15 mm. The characters of the final 
stage now appear. The head has changed its shape and style of 
markings to that of the last stage ; it is flatter in front, with a lat- 
eral brown line edged with white, while the large, conspicuous, dark 
spots have disappeared, and the color of the head is dull opaque 
amber. The four red, parallel, dorsal lines on the second and third 
thoracic, and seventh and eighth abdominal segments are now dis- 
tinct. All the dorsal tubercles, except those on the prothoracic, 
and first and eighth abdominal segments have much diminished in 
size, while the others have remained stationary. 
Fourth stage . — Length 18 mm. The piliferous warts in. general 
are smaller than in stage III, and those on the prothoracic and 
first and eighth abdominal segments are smaller than before. The 
eighth abdominal segment is slightly humped, and the anal legs 
are normal, though about one-half as thick as those in front. The 
body is green, with a broad subdorsal and two narrow lateral yel- 
low lines as in the last stage, the lower being the infra-spiracular 
line. The sides of the three thoracic segments are dotted with red- 
dish-pink, and there is a reddish streak on the outside of the anal 
legs. The subdorsal yellow lines diverge on the prothoracic seg- 
ment, and along the next two segments succeeding are edged with-* 
in with pink-red lines. Behind the two dorsal* tubercles on the 
first abdominal segment they are much farther apart, extending to 
the supra-anal plate and are whitish-yellow, narrowly bordered 
with deep, straw-yellow and enclose a narrow, yellow dorsal line. 
(This line in the next stage extends to the prothoracic segment.) 
