12 THE FIG MOTH. 
The egg is subject to considerable variation in form. Measure- 
ments of five eggs showed the following average : 
Length, 0.33-0.38mm. ; width, 0.22-0.32mm. 
Two groups of eggs are shown, highly magnified, at fig. 1, d. 
The newly hatched larva. — The larva when first hatched is deli- 
cate, white in color, sparsely hairy, and is about a millimeter long, 
being about six times as long as wide when contracted. It is widest 
at the head, which is light brown. The eyes are small and nearly 
black. The first thoracic segment is nearly as wide as the head, per- 
ceptibly darker than the remaining segments, which are clear white 
and less than four-fifths as wide as the head. The legs are long, par- 
ticularly the thoracic ones. 
The full-grown larca. — The full-grown larva or caterpillar is of 
nearly the same form as that of the Mediterranean flour moth, Ephes- 
tia kuehniella (see fig. 2.), and faintly marked individuals would 
easily be mistaken for that species. It differs chiefly in its smaller 
size, being a third smaller than the flour-moth larva, in its darker 
color, and in its more prominent piliferous dots, which, with the pink 
or flesh tints which are arranged longitudinally along the dorsum, 
give it a distinctly striated appearance. 
DESCRIPTION. 
The full-grown larva is cylindrical, about six times as long as wide, generally 
of similar form to E. kuehniella. Ground color dirty whitish, very pale 
greenish, or very light buff, with an overlay of rather dull pinkish tints arranged 
in more or less definite longitudinal rows on the dorsal surface. Surface very 
finely granulate. Head about half the greatest width of the body, ochraceous 
or cinnamon rufous in color, darkening toward the mouthparts. Thoracic plate 
(cervical shield) of similar form to that of kuehniella but faintly tinged with 
blackish anteriorly and much darker, nearly black posteriorly. Piliferous dots 
or warts, and particularly the other markings, nearly as in kuehniella, but all 
dots of darker color, nearly black, larger, and more conspicuous. Ventrolateral 
and ventral rows quite conspicuous, the four pairs of rows presenting, with the 
banded pink coloring of the dorsal surface, a distinctly striated appearance. 
Posterior fold of abdominal segments not noticeably smaller than anterior. 
Length, 9.5-12.5 mm. ; width, 6.2 mm. In appearance more robust than 
E. kuehniella when contracted and when at rest, and more slender when ex- 
tended. A larva 10 mm. in length will extend to 12.5 mm. and contract to 
S.5 mm. 
The larva is illustrated in figure 1 at c, about four times natural 
size, and that of E. kuehniella is reproduced in figure 2 for com- 
parison. 
The larva exhibits much the same variation in color as does that 
of E. kuehniella, the quality of food playing no perceptible part in 
regulating or even indicating the hue. The ground color ranges 
from whitish to yellowish and greenish, with flesh tints arranged 
longitudinally, somewhat like stripes, along the dorsal surface. 
