INSECT ENEMIES OF EASTERN FORESTS 399 
black with white or yellowish stripes, and the bases of the legs are 
reddish. This species occurs throughout the Atlantic States and west, 
at least to Illinois. Its food plants include andromeda, apple, azalea, 
blueberry, and huckleberry. | | 
The full-grown larva of Datana perspicua G. & R., the sumae da- 
tana, is moderately hairy and about 2 inches long. The head is dark 
reddish to black, the cervical shield reddish brown, and the anal plate 
blackish. The body is deep straw or lemon yellow with 11 longitudinal 
dark reddish-brown to blackish stripes, the median dorsal stripe and 
Figure SO.—Datana larvae: A, The sumae datana (Datana perspicua) ; B, the 
walnut caterpillar (D. integerrima). 
the stigmatal stripes wider than the others. The legs are black with 
reddish-brown bases (fig. 80, 4). The partly grown larva has a 
black head, a blackish cervical shield, and the body is lemon yellow 
with dull, reddish stripes. This species has been recorded from New 
England south to Virginia and west to Colorado and Montana. Its 
larvae feed on sumac (Rhus glabra, R. typhina, and R. copallina). 
The full-grown larva of the walnut caterpillar (Datana integer- 
roma G. & R.) is nearly 2 inches long and clothed in long, dirty- 
white or grayish hairs. The head and body are black and the abdo- 
minal legs are black outside and reddish inside (fig. 80, B). The 
partly grown larva varies from brick red to dark reddish brown, 
with yellowish to grayish longitudinal stripes. The head and cervical 
792440°—49-___96 
