The hag moth, Phobetron pithecium (J. E. Smith), feeds on various deciduous 
trees and shrubs. The larvae are brown, about 10 mm long, and each bears nine 
pairs of lateral brown processes. The third, fifth, and seventh pairs are long, curved 
and twisted, and are suggestive of the disheveled locks of a “hag.”’ These processes 
are clothed with stinging hairs. 
The oriental moth, Cnidocampa flavescens (Walker) (fig. 66), an introduced 
species first recorded in this country near Boston in 1906 (223), is still confined to 
eastern Massachusetts. The adult has a wingspread of 30 to 42 mm. Full-grown 
larvae are about 22 mm long and marked with yellow, blue, green, and purple. The 
larvae feed on a large number of tree species, including Norway and planetree 
maples, sweet birch, cherry, apple, pear, plum, oak, aspen, willow, honeylocust, 
hickory, and hackberry. 
F-519528 
Figure 66.—The oriental moth, Cnidocampa flavescens: 
Upper, adults and cocoons; middle, a defoliated 
ole), maple; lower, full-grown and newly hatched 
arvae. 
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