THE CIGAR CASE-BEARER. 37 
DESCRIPTION. 
THE EGG. 
The minute egg (fig. 10, d), which is hardly visible to the naked 
eye, is pale yellow, and over the surface is closely marked with ele- 
rated ridges. On the average, it measures 0.31 by 0.25 mm. and is 
almost round in outline. 
THE LARVA AND ITS CASES. 
When newly hatched the larva is pale yellow, with the head and 
thoracic plates dark brown or nearly black. The full-grown larva 
(fig. 10, ¢) averages 5 mm. to 5.8 mm. in length and 1.16 mm. in 
greatest width. Its head is 0.5 mm. wide and is dark and strongly 
chitinized, with the ventral surface 
lighter than the rest. The body is 
reddish orange, with dark plates as 
follows: The cervical plate on the 
prothorax, subdivided by a white 
interspace; two smaller plates on the 
dorsum of the mesothorax; a pair 
of lateral plates on each thoracic seg- 
ment; a large anal plate on the termi- 
Fic. 9.—The cases of the cigar case- 
nal segment; a small plate on the — pearer (Coleophora fletcherella) : a, 
side of each anal leg. The crochets Upper view of the cigar-shaped case, 
, S ‘S F showing the smooth and the hairy 
on the fourth pair of abdominal legs sides. and the three-lobed hind open- 
Temp oeiG, And. Ongune first three ie; ) side view of ‘same, ic the 
: 5 4 « case aS it appears in the spring, 
pairs are rudimentary or wanting, with the tubelike addition; d, the 
varying from none to 4, in one or fall and winter case. Much en- 
4 larged. (Original.) 
two rows. The anal legs have from 
10 to 13 well-developed crochets placed in a single row. The spiracles 
are round and feebly indicated. The thoracic legs are large, dark 
brown, strongly chitinized, and with a chitinous plate behind the 
basal portion of each leg. The sete on the head, thoracic legs, and 
terminal portion of the body are distinct; on the abdominal segments 
they are rather indistinct. The abdominal segments are distinctly 
divided into two annulets, and the dorsal surface of each annulet is 
minutely granular. 
The case, as it is made in the fall, is a minute, flattened structure 
(fig. 9, dy composed of portions of the upper and lower skins of the 
leaf. In the spring, with the growth of the larvee, the anterior open- 
ing is prolonged into a tube made from fragments of leaves fastened 
by silk (fig. 9, ¢). The second case, in which the larva finally pu- 
pates (fig. 9, a, >), is longer, cylindrical or cigar-shaped, slightly 
compressed laterally, and with a more or less distinct ridge above and 
beneath. The anterior opening is round, slightly funnel-shaped, and 
bent downward, so that the plane of the opening forms an acute angle 
