Several other species of Chrysobothris also occur fairly com- 
monly in eastern forests. Some of these and some of their more 
important hosts are as follows: C. pusilla L. & G.—pitch, short- 
leaf, and white pines, white spruce, and hemlock; C. dentipes 
(Germ.)—white, shortleaf, longleaf, and scrub pines, and larch 
(this species is reported to be strongly attracted to sawmills) ; C. 
floricola Gory—probaly all species of pines; C. scabripennis L. & 
G.—pine, spruce, hemlock, and balsam fir; C. trinveria (Kby.)— 
white pine and spruce; C. harrisi (Hentz) —Virginia, white, and 
pitch pines; C. azurea LeC.—white oak, dogwood, maple, bass- 
wood, birch, and willow; C. sexsignata (Say)—ash, red maple, 
walnut, hickory, beech, yellow birch, white oak, hemlock, cypress, 
and pitch pine; C. texana LeC.—red cedar; C. adelpha G. & H.— 
hickory and pecan; C. veridiceps Melsh.—red maple, red oak, and 
cherry; C. blanchardi Horn—white, Virginia, and pitch pines, 
and larch; and C. neopusilla Fisher—balsam fir. 
Chalcophora virginiensis (Drury), the large flatheaded pine 
heartwood borer, breeds in injured, dying, and dead pines and in 
pine stumps throughout eastern United States. Adults (fig. 50) 
are dull black or dark bronze beetles about 23 to 33 mm. long. 
The thorax is broader than long, and the elytra are marked with 
dark or shiny elevations and rough, grayish or brassy depres- 
sions. Full-grown larvae are up to 50 mm. long and the dorsal 
thoracic plate is marked with a Y. Eggs are deposited around 
scars on living areas and in bark crevices or holes in the bark 
of logs and stumps. Living trees may be severely damaged by 
larval tunnels in the wood. Pine logs left too long in the woods 
are also subject to severe damage. C. liberta (Germ.) and C. 
COURTESY OF DUKE UNIV. SCH. OF 
FOREST. 
FIGURE 50.—Adult of Chal- 
cophora virginiensis, the 
large flathead pine heart- 
wood borer. 
167 
