198 
The caterpillars when full grown are two inches long, u hairj r , with 
a dorsal white stripe, with numerous fine crinkled black lines on a 
yellow ground, united below into a common black band, with a blue 
spot on the side of each ring.” The moth expands an inch and a 
quarter to an inch and a half. The wings are ashy reddish brown, 
with two white lines crossing the fore wings obliquely. Between 
these the color is a little lighter. 
Clisiocampa sylvatica, Harris—The Forest Lackey Moth. 
Expands an inch and a half or more. This is a lighter moth than 
the American Lackey, the wings being brownish yellow, the fore 
wings covered obliquely by two oblique brown lines similar to the 
white lines of the Americana. The larva, known as the Forest Tent 
Caterpillar, is sometimes destructive to apple and oak trees. 
Spec. Char. Larva .—“The general color of the whole body is light* 
blue, clear on the back, and greenish at the sides; the head is blue, 
and without spots; there are two yellow spots and four black dots on 
the top of the first ring; along the top of the back is a row of eleven 
oval white spots, beginning on the second ring, and two small ele¬ 
vated black and hairy dots on each ring, except the eleventh, which 
has only one of larger size ; on each side of the back is a reddish 
stripe bordered by slender black lines, and lower down on each side 
is another stripe of a yellow color between two black lines. The 
under side of the body blue black.”—Harris. 
Xyleutes robini^, Peck.—The Locust tree Caterpillar or Moth. 
This insect belongs to a group of this family of moths that differs 
in some respects from those described before. While the caterpillars 
of the others eat the leaves of trees, shrubs and various other plants, 
the larva of this moth, frequently known as the Locust Borer, lives 
wholly within the tree which furnishes it food. Briefly, the natural 
history of this insect is as follows: 
About the first of July the eggs are deposited in the crevices of the 
bark, usually of old trees instead of young ones. When young, the 
worms are dark brown with large heads. They bore into the trees in 
various directions, but chiefly in an oblique direction upward and 
downward, increasing the cavity as they increase in size, and lining 
it with silk as they go. When full grown they measure two inches 
and a half or more in length, with about a third of an inch in thick¬ 
ness. They are reddish brown above and white beneath, with the 
head and top of the first segment brown and hard. There are a few 
short hairs from minute warts scattered over the body. When about 
to transform it spins a close coccoon a short distance from the orifice 
it has prepared for the exit of the moth, and changes to a brown 
and amber colored chrysalis. On the upper side of each abdominal 
segment are two transverse rows of tooth-like projections, with which 
