PINE BORERS . 677 
thorax are three polished, black elevated lines ; on each wing-cover are two small 
square impressed spots, a long elevated smooth black line near the outer, and another 
near the inner margin, with several short lines of the same kiud between them ; 
under side of the body sparingly covered with short, whitish down. Length 0.8 to 
1.10 inch." (Harris.) 
3. Chalcophora, probably C. virginiensis. 
(Larva, PI. XVI, rig. 1.) 
I have little doubt but that the following description is that of the 
larva of the foregoing species, and that at any rate it is a true Chalcop- 
hora. 
Compared with Loew's figure of the larva of Chalcophora (Ent. Zeit- 
ung, Stettin, 2ter Jahrgang, 1841, Tab. I, figs. 1-8) our species differs 
mainly in the larger chitinous prothoracic disk, though the V-shaped 
mark is the same. In the shape of the body, in the form of the meso- 
thoracic and metathoracic segments, and the end of the abdomen, our 
larva appears to be a Chalcophora. The first abdominal ring is longer 
and narrower than in Loew's figure. The labrum is peculiar in this 
genus, on account of the lateral lobes ; in this respect it resembles the 
figure of Loew ; while the antennae, maxillae, and labium are nearly as 
he figures them. Under these circumstances we think there is no rea- 
sonable doubt but that this larva is a Chalcophora, and probably, from 
its large size, C. virginica, which, according to Harris, bores in the pine. 
The two specimens described were taken from under the bark of the 
pitch pine, May 26, Providence, R. 1. 
Larva. — Compared with Dicerca the head is much larger and better developed, 
while the prothorax is of the same size, and the abdomen is fully as thick, but rather 
longer. Prothorax and the V-shaped mark one half narrower than in Chrysobothris 
femorata, and with no markings around the apex, as in Dicerca. The prothoracic 
disk has very large, coarse, transverse, raised linear chitinous points, which are more 
or less confluent, forming irregular transverse wavy ridges. The disk on the under 
side has similar markings, and a single narrow deeply impressed median line, which 
extends from the front to the hinder edge. 
No roughened area on the succeeding segments, but on the mesothoracic are two 
remote converging curved lines, and on the metathoracic segment are similar lines, 
which extend nearer the front edge ; the curved lines inclose a subtrapezoidal space. 
* Chalcophora virginiensis is stated by Fitch to be always an inch or more in length, 
but I have measured a great many specimens and find that few exceed an inch in 
length, the rest varying from seven-eighths of an inch up to the maximum of slightly 
over an inch. This species is duller in color than the preceding species, and the 
raised lines on the elytra are less sharply defined. It can be further distinguished 
by two impressed spots on each elytron interrupting the second line. This species 
has been found by me almost invariably crawling, or at rest, upon the sunny side of 
the trunk or limbs, instead of among the leaf clusters. Its color tones so well with 
the bark of young trees that it is not easily seen, until this habit of frequenting the 
sunny side of the tree is known, when it can be more readily found. We have 
already noticed that liberta closely resembles the young cones and thus have in these 
beetles two very good instances of protective coloring and habits. C. virginiensis 
is not so abundant as C. liberta, but is by no means rare and is not unfrequentJy 
found about the city on the sidewalks or crawling on houses or fences. — W. Hague 
Harrington in Trans. Ottawa Field Naturalist's Club, No. 2. 
