I. THE PINES. 55 
false caterpillars of the Lophyrus abietis.—(Harris’s Report, 
pp. 230, 375.) 
Several species of weevil, of which two (the Pales weevil, 
Curculio pales, and the white pine weevil, Rhynchenus strobi,— 
Report, pp. 62—64), are particularly described by Dr. Harris, 
dwell, during their larva state, under the bark of the pitch pine, 
the white pine, and probably others, and often do immense in- 
jury by destroying the alburnum and the inner portion of the 
bark. Whole forests of pines are sometimes thus killed by these 
apparently insignificant creatures. In addition to this mode of 
assault, the weevil which receives its name from the white 
pine, does great mischief by piercing, with holes from the inte- 
rior of the wood to the bark, the leading shoot of this tree, thus 
destroying the shoot and maiming and deforming the tree. 
These attacks would soon be fatal to the whole race of white 
pines and probably all the others of the genus, were it not for 
an ichneumon-fly which deposits its eggs in the larva of the 
weevils, and the effectual services of the woodpeckers, who 
spend their useful lives in destroying them. The terminal buds 
and leading shoots of the pines and firs, are often destroyed by 
turpentine moths, an entirely different enemy, associated with 
the leaf-rollers.—( Toririces, 1b. p. 350.) 
A small brown cylindrical beetle, the boring hylurgus, (Hylur- 
gus terebrans, ib. 72), deposits its eggs in the bark of the pitch 
and other pines, the soft inner layers of which the grubs devour, 
and, by preventing the formation of new wood and by loosening 
the bark, cause the trees to languish and decay. They are 
sometimes accompanied by the grub of a smaller bark-beetle, 
(the Tomucus exesus, ib. 74), which leads a similar hfe, with 
similar consequences. Another still smaller beetle of the same 
pernicious family and habits, (the Tomicus pint of Mr. Say, ib. 
74,) has been found under the bark of the white and pitch pmes 
and that of the larch. The red cedar has a very small bark- 
beetle, (Alylurgus dentatus, the toothed hylurgus, ib. 73). A 
still more conspicuous bark-loosener, the ribbed Rhagium, (Rha- 
gium lineatum, ib. 93), which does a work hardly less fatal for 
that tree, is found, in the grub state, often in great numbers 
under the bark of the pitch pine. 
