1890 .] 
537 
[Packard. 
legs, dusky. Before moulting the larva doubles in length, finally 
being 6 mm. long. 
Second stage, after the first moult . — Observed to moult July 19-24. 
Length 7-8 mm. The larva is very different from the preceding 
stage. The head, though smaller in proportion to the rest of the 
body, is still much wider than the body, ending on the vertex in two 
conical tubercles, much as in the adult; color of the head brown, 
with four rows of large round pale spots, three in each row ; the sides 
of the head and occiput pale. Prothoracic segment with two large 
black-tipped conical tubercles, and two much larger ones on the 
first and eighth abdominal segments, those on the first being larger 
than those on the eighth segment, and several times larger than in 
the first stage ; there is a smaller pair on the fifth abdominal seg- 
ment. Anal legs long and slender, of much the same proportions 
as in the fully-fed larva. Color of the body greenish, but the pro- 
thoracic and first, third, fifth and eighth abdominal segments red- 
dish. The piliferous tubercles on the sides of the body are not so 
large and prominent as in stage I. 
The hairs are not quite so long as the body is thick and of more 
uniform length all over the body than in stage I, and decidedly 
different in shape from those of the first stage ; they are shorter, 
thicker, and somewhat shovel-shaped, being broad and flat at the 
end, and slightly notched or toothed on the edge, the flattened por- 
tion being striated ; those of the head are still simple. Those of the 
two prothoracic tubercles are twice as long as those on the meso- and 
metathoracic segments, the hairs on the latter two segments and on 
the abdominal being somewhat shorter than the body is thick ; those 
of the two larger tubercles on the eighth and ninth segments are a 
little longer than those on the smaller tubercles at the end of the 
body. In nearly all the hairs the shaft is, under a one-half inch 
Tolies objective, seen to be finely spinulated. 
Third stage , after the second moult . — Observed to moult August 
1-2. Length 10-11 mm., finally becoming 13-14 mm. The head, 
tubercles and hairs (setae) much as before, the head retaining the 
same style of markings. The colors of the body, however, have 
changed ; there is an irregular double dorsal reddish-resin line on 
the thoracic segments. On abdominal segments 2 to 4 is a sin- 
gle line, and on the same segments the dorsal tubercles are yellow- 
ish-green, as are those on segments 6 and 7. The ground color 
of the body is yello#ish-green, irregularly marbled on the sides with 
