INSECTS INJURIOUS TO THE PINE. 147 
site the middle of the anterior end of each wing-cover are here larger and more promi- 
nent than in either of the foregoing species and each of these spots has the shape of 
a right-angled triangle, the line bounding its outer side running directly forward in- 
stead of obliquely inward and forward, each spot being also more broad than long, 
The rough depression which’ extends forward from these spots to the anterior angles 
of the thorax has in its middle a well marked, elevated, smooth spot, which is oblong 
and placed obliquely, with an oblique groove on its onter side separating it from a 
smooth and somewhat triangular spot on the outer margin, which is more distinet in 
this than in either of the preceding species, and produces a slight undulation of the 
outer edge, this edge being almost rectilinear with the opposite sides, parallel with 
each other two-thirds of their length, and then abruptly or anguiarly inclining inwards 
to the anterior angles. The wing-covers have the elevated lines much broken and 
irregular, resembling those of the preceding species, though on a particular exami- 
nation several differences will be noticed. (Fitch.) 
This insect has also been found by Dr. Leconte, at Sacramento, Cal. 
4, THE TOOTH-LEGGED BUPRESTID. 
Chrysobothris dentipes (Germar). 
Though usually occurring in oak trees, occasionally living under the bark of the 
white pine, where it makes a flat, shallow burrow, sometimes half an inch broad and 
ending in an oval cell, in which the larva occurs in autumn, winter, and early spring. 
We have already noticed this Buprestid among oak borers. We have 
found, May 20, at Providence, R. I., the dead beetle in its burrow under 
the bark of a white pine stump. 
5. HARRIS’S BUPRESTIS. 
Chrysobothris Harrisii Hentz. 
Order COLEOPTERA ; family BUPRESTID®. 
Appearing on the trees in May and becoming most common about the middle of 
June, a small beetle 0.32 long, of a brilliant blue-green color with black antenne and 
feet, and in the male the sides of the thorax and the thighs copper-colored, its sur- 
face punctured, with a groove on the middle of the thorax and two indentations near 
the base of each wing-cover, slightly separated by a raised line, the inner one running 
into a groove which extends along the suture to its tip. Its larva living under the 
bark of young trees and small limbs. (Fitch.) 
According to Leconte this beetle inhabits the twigs of the white pine: 
Mr. George Hunt also informs us that it inhabits the white pine in Rhode 
Island, where he has collected it late in June and during July. 
6. Chrysobothris trinervia Kirby. 
As this beetle occurs in the pine forests of Colorado, it is most proba- 
ble that it bores in pine trees. It is a rather small, short, 
broad species, dull blackish, with faint metallic reflec- 
tions. Surface of the body, especially the wing-covers, 
with irregular ridges, the inner one parallel to the inner 
edge of the wing-cover; wing-covers with smooth, ele- 
vated areas, between which the surface is minutely 
pitted with dense golden punctures. Body clothed Wes eee alt Lonalaono 
neath with short, coarse hairs. Length, 0.45 inch. (Le- LE he ie 
4 ; tage : olorado. — Fron 
conte.) We collected a specimen on the Divide, Colo- Packard. 
rado, July 12. Prof. F. H. Snow has taken it at Santa Fé, N. Mex. 
