. > 
7 
F-519311 
Figure 155.—Adult feeding damage to yellow-poplar leaf 
by Odontopus calceatus. 
F-519950 
Figure 156.—Aduit of the poplar-and-willow borer, 
Cryptorhynchus lapathi. 
antennae and tarsi are reddish brown, the body black. The body is covered with 
black and yellow or white scales intermixed with erect black bristles. The white 
scales predominate on the apical third of the elytra. 
Adults appear in late July and August and feed on the inner bark of young shoots. 
Eggs are deposited singly or in groups of two to four in slits cut in corky bark, often 
in lenticels and scar tissue. Young larvae feed in the cambial region and outer layers 
of sapwood. They tunnel in all directions and push their borings out through small 
holes. In late fall, they hollow out small chambers in the inner bark, and there spend 
335 
