Chapter XX. 
INSECTS INJURIOUS TO THE CEDAR, CYPRESS, ETC. 
INSECTS INJURIOUS TO THE CEDAR. 
Thuja occidentalis. 
1. The cedar tineid. 
Bucculatrix thuieUa Packard- 
Order Lepidoptera ; family Tineid^e. 
Feeding on the leaves and spinning slender, small, conspicuous ■white cocoons at- 
tached to the leaves, and transforming to a narrow- winged, beautiful pearly-white 
moth, dotted and marked with brown. 
The following account is taken from my first report to the Massachu- 
setts Board of Agriculture : 
This is a little moth, of which the caterpillar is unknown, though I found the 
moths and cocoons in abundance on a cedar tree in Brunswick. Me., July 10. It is 
undoubtedly similar in its habits to a little moth which 
lives not uncommonly on the apple tree, and has been 
described by Dr. Clemens under the name of Bucculatrix 
pomifoliella. Its long, slender, white cocoons may be 
found, at any time after the leaves have fallen, on the 
branches of apple trees. 
Dr. Clemens says that "the larva feeds externally on 
the leaf of the apple, at least at the time it was taken, in 
the latter part of September. It is cylindrical and sub- 
moniliform ; tapers anteriorly and posteriorly ; with 
punctiform points and isolated hairs ; first segment with 
rather abundant dorsal hairs; three pairs of thoracic 
feet and five abdominal pairs. Head small, ellipsoidal, 
brown; body dark yellowish green, tinged with red- 
dish anteriorly ; hairs blackish and short. Early in 
October the larva enters the pupa state, wearing an 
elongated, dirty white, ribbed cocoon, and appears as 
an imago during the latter part of the following April, 
or early in May." The present species seems to be undescribed, and may be called 
Bucculatrix thuiella. It belongs to the extensive Tineid family, and its general appear- 
ance is sufficiently indicated by the drawing. 
Moth. — The body and wings are pearly white, and the antennas are white, with 
brown wings, while there is a low broad tuft of white scales between the antennae, 
•the crest being much flatter than in the species living on the apple. The forewftigs 
are white, and crossed in the middle by a broad brown band, and beyond this band 
by alternating white and brown stripes, crossing from the front edge (costa) of the 
wing. On the end of the wing, and in the middle of the outer edge, is a conspicuous 
917 
Fig. 30-1.— The cedar tineid en- 
larged ; a, cocoon, nat. size. — 
From Packard. 
