428 MISC. PUBLICATION 657, U. S. DEPT. OF AGRICULTURE 
that its food plants are wild cherry, larch, and black locust. The 
larvae feed during July, early in August, and in September and Octo- 
ber, and the moths from these broods emer ge in August and in May 
or June. 
The moth of the grapevine looper (Lygris diversilineata (Hbn.) ) 
is ochreous yellow, with a wing expanse of 114 to 2 inches. The fore- 
wings are marked with diverse rust-brown lines, and an area just 
beyond the middle of each forewing is usually tinged with purplish 
brown. The hind wings are paler, the outer third marked with diffuse 
dark-brown lines and more or less tinged with purplish brown, the 
color being most pronounced toward the anal angle. The full-grown 
larva is slender, about 114 inches in length and pale green, with pinkish 
or reddish markings, sometimes nearly all reddish. The head is 
flattened in front and bilobed. The thoracic and abdominal seg- 
ments 7 to 10 are very short, while abdominal segments 1 to 6 are 
very long. 
This species is found in eastern and southern Canada and the north- 
eastern part of the United States west to Wisconsin and Missouri. 
Its favored food plants are grape and Virginia creeper, and records 
indicate it sometimes causes considerable damage to these vines. The 
moths emerge late in July and August, and deposit their eggs, usually 
in rows of 8 to 12 eggs each, on the older vine growth. ‘The winter is 
passed in the egg stage, and hatching usually occurs during the latter 
part of May or early in June. The larvae mature in 6 or 7 weeks. 
They are inactive during the day and usually hide on the underside 
of the leaves. Pupation takes place in loose webs generally on the 
foliage, the duration of the pupal stage lasting about 10 days. Isely 
(25. ay discussed this looper. Some authors have reported two genera- 
Fone annually, and that the second generation passes the winter in the 
larval stage. 
Eulype hastata (1.) the spear-marked black moth, is recorded in 
the United States from the Atlantic to the Pacific. The larvae feed 
on birch, sweetfern, sweetgale, and willow. They are gregarious and 
spin together leaves forming a nest in which they live. The full- 
grown larva is about 1 inch in length. The head is shiny black and 
the body dark brown to black, with a series of minute, black dots 
forming a slender stripe on each side, below which are some spots 
varying: x-from white to brick red. In New England the moths emerge 
late in “May and June and again in August, the larvae may be found 
from June to September, and the winter is passed in the pupal stage 
on the ground. Apparently there is at least a partial second 
generation. 
The larva of Bapta semiclarata (Wlky.) when full-grown is about 
4 inch long, and light green with a brownish head. It feeds on wild 
cherry and is recorded from the Atlantic States. The moths emerge 
in May, the larvae are found from June to early in August, and the 
winter is passed in the pupal stage. 
The larva of Detlinea erythremaria (Guen.) is about 114 inches 
long when full grown. It is hght green and the head has a red 
stripe on each side. The body is marked with a red lateral stripe 
on each side more or less broken, and on the back are diffuse reddish 
patches, Its food plants are poplar and willow. The larvae feed 
