487 ' 
[Packard. 
docked at the end, but bears two fine terminal hairs, and seen side- 
wise forms an elongated cone. The larvae moulted for the third 
time July 2-3. 
Fourth stage . — July 2-3. Length, 12 mm. No essential differ- 
ence from the third stage. The proportionate size of the warts 
on the thoracic segments is as in stage III, but the two dorsal 
warts on the ninth segment are smaller than in the preceding stages. 
The suranal spine is a little more hirsute than before. The last 
ecdysis occurred July 10-12. The larva, as in the previous stage, 
spins a slight web on the surface of the leaf. 
Fifth and last stage. — Length, 15-20 mm. The head is short, 
rounded, distinctly bilobed, each half full and rounded, and is not 
much over one-half as wide as the body behind the middle ; it is 
greenish-yellow, stained reddish-brown above with three black- 
brown, broad transverse lines in front ; one is situated on the vertex ; 
the middle one is curved, bending down on each side of the head to the 
ocelli ; the frontal line is paler and connected with the clypeus. The 
two dorsal warts on the prothoracic segments are now minute, the lat- 
eral ones are broad and flat, one of the two being double and bearing 
two hairs. Those on the second and third thoracic segments are 
larger than any others on the body. On the abdominal segments 
the four small inconspicuous dorsal piliferous warts are arranged in 
a low trapezium, the two in advance being the smaller, the four warts 
©n the eighth segment nearly forming a square. The suranal spine, 
seen from above, is broader at its base than before and is more 
conical than in the fourth stage, the upper surface is rather convex, 
and the spine is rust-red, the tip blunt and very slightly notched, 
each side bearing a fine hair. The spiracles are yellowish with a 
blackish ring. 
The body is pea-green, brown and brick-red above, on the abdomi- 
nal segments, and mottled with livid clouds varying much in dis- 
tinctness and in number, while the lower edge of the dorsal rust-red 
area is of a not very distinct livid hue. The three thoracic segments 
are green above, but brick-reddish near the lateral tubercles. The 
“ frass,” or pellets of excrement, are short and barrel-shaped. 
On the 13th of July one turned over the end of a leaf, tying it 
down with several silk cords, forming a covert within which to pu- 
pate, and where it spun a thin but quite dense cocoon. It pupated 
July 17-19. 
The pupa is securely held within the cocoon not only by the ere- ' 
