732 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 
that there is scarcely a pine more than 4 feet high on his grounds 
which is not more or less affected by this borer. " I have found it on 
Finns atrobns, 1'. rubra or resinosa^ I*, anstriaea, P.sylve.stri.s, P. cembra, 
Oorsican, lofty Bothan ami Russian pines. P. sylvestrti seems to suffer 
most, as the limbs, and often the main stems, are constantly breaking 
off, Only a few days ago one of our finest specimens of P. strobus (a 
tree over 30 feet in height and almost perfect in shape) had about 6 feet 
of the top broken off — the effects of this borer. I am in hopes the small 
parasitic flies I found iu the larva will soon get the upper hand, so as 
to keep them in check." 
Additional observations have also been made by Mr. D. S. Kellicott, 
who states* that the moth is pretty widely spread, as it occurs not only 
in foreign and native pines in and about Buffalo, but that he has "found 
it quite abundant in small white pines of the forest at Cheektowaga,Erie 
County, N. Y. At this place I found many plants had been dwarfed 
and ruined by their ravages. It also occurs, to what extent I am 
unable to say, at Hamburg and Clarence Center, iu the same county. 
I recently visited a portion of this State, Oswego County, formerly 
clad to some considerable extent with white pine, and there are yet 
standing some virgin forests of this splendid tree. In divers places in 
that county I fouud our borer; it is so abundant, in one locality at least, 
that it proves a grave enemy to the young pines of second growth where 
the primitive trees have been removed by the lumbermen. There is 
near Hastings Center an old slasli in which at least one-half of the 
many such small pines have been injured; indeed, in one neglected 
corner, among scores scarcely one tree had escaped. In this instance, 
also, many pines were stunted, while some thus weakened had been 
broken off by the wind." * * * u In a clump of pines, whose trunks 
were from 6 inches to 1 foot in diameter, many of the larger ones had 
been 'boxed,' i. e., inclined incisions had been cut by the axe through 
the sap-wood iu order to catch the pitch exuding from the wound. 
Around the borders of these i boxes ' the galleries with both pupa 
skins and living larva3 were plentiful. It appears that the larva can not 
penetrate the outer bark of other than quite tender trees ; nor could I 
find evidence of their attacking the branches of larger trees, although 
I had opportunity to examine such that had been felled during the 
winter just past. Since the larva so readily takes advantage of a 
wound, may it not stand related as a messmate to other borers V 9 • • • 
" I have found the moth's galleries in both trunk and branch, both 
above and below the whorls (usually below), sometimes completely 
girdling the stem, thus killing the portion above; iu one instance I 
found a gallery passing from one whorl to the one above." 
This larva, observes Dr. Kellicott (Ent. Americana, i, 1885, p. 173), 
does not produce so large an excrescence as JZgeria pini. "The 
excrescences are also more irregular, often a mere line or track of 
•Canadian Entomologist, xi, p. 1L4, 1879. 
