206 INSECTS INJURIOUS TO FOREST AND SHADE TREES —~ 
and fore legs are concolorous, while the middle and hind legs are white. Length, 
0.44 inch. 
The moth has unusually broad transparent wings, which are white or pale ash. — 
Head deep yellow. Fore wings crosséd by two black lines, the inner with four 
scallops, the outer line sinuous, scalloped, with a great curve outward between the 
subcostal and the third median venule. Opposite the discal dots are three acute, 
smaller scallops, all of equal size. Fringe whitish, distinctly checkered with black 
on the ends of the venules. Hind wings with a scalloped onter line, often obsolete 
toward the gostal edge, varying in its distance from the outer edge; beyond this line 
the wing is darker than at the base. Expanse of wings,1.30 inches. Its range as far 
as known is from Maine and Canada to the Middle States. 
82. THE 10-LINED PINE SPAN-WORM. 
Order LEPIDOPTERA; family PHALENID. 
Larva.—Body % inch in length, dull green, darker than the leaves; body very slender; 
head large, considerably wider than the body, deeply divided by the median line; pale 
greenish yellow. Body on the upper side with ten narrow linear wavy dull purplish livid 
lines, which disappear before reaching the supra-anal plate, which is small, flattened, 
not prominent; it issubtriangular iy form, the apex not sharp. Similar purplish lines 
on the under side of the body. ‘Thoracic and first pair of proplegs purplish; the last 
pair greenish. This though not a strictly mimetic form, is sufficiently so to escape 
ordinary detection, not being much darker than the leaves. Observed, August 17, on 
leaves of the pitch-pine at Brunswick, Me. 
83. THE RED AND YELLOW STRIPED PINE SPAN WORM. 
Feeding in September on the leaves of the pitch-pine, a stout reddish brown meas- 
uring worm, striped with straw-yellow; the moth unknown. 
This is another reddish caterpillar which is somewhat assimilated in 
color to the pine twigs among which it feeds. Unfortunately the moth 
is unknown. We have found it the first of September, at Brunswick, 
Me., and also September 20, at Amherst, Mass. 
The caterpillar is thick-bodied and rather short. Tlead large and smooth, not tuber- 
culated above, but swollen somewhat on both sides. The sides of the body are 
swollen, and there is a lateral tubercle on the side of each segment; the anal lateral 
plates are large and spreading; the dorsal anal plate large, rounded at the end, and 
semi-elliptical rather than rounded. It is reddish brown, with minute straw-yellow 
lines; a pale straw-yellow median dorsal line dilating on each wing; a pair of dark 
brown dots on the hind margin of each seement; on the sides an irregular deep yellow 
line. Head reddish, dusted with vellow and dark brown speckles. Length not quite 
.70 inch. 
84. THE PINE-NEEDIE SPAN WORM. 
Feeding on the leaves, a small measuring worm, closely mimicking the form of a 
dead red-pine needle. ; 
This is the most striking case of mimicry we have seen on the pine; 
the caterpillar, as it stands out stiff, holding on to the twig with its hind 
feet, after the manner of measuring or span worms, would easily be 
mistaken for a dead, dry, red piteh-pine needle! We have found one 
specimen on the pitch-pine at Brunswick, Me., September 1. On the 
Sth it made a slight silken white cocoon and assumed the semi-pupa 
condition, 
The caterpillar is slender and unusually flattened, tapering more than is common 
towards each end of the body. The head is small and narrow, but rather full. The 
