INSECTS INJURIOUS TO THE PINE. 157 
on the body and antenn, and gray ones on the legs; its color shining pale chestnut, 
with irregular oblique and transverse spots and streaks of gray on the wing-covers, 
which are coarsely punctured, the punctures dense on the base and fine on the apex; 
its thorax narrower, slightly darker colored, closely punctured, having a very small 
tooth-like point on each side and along its middle a gray line which is widely inter- 
rupted in the center, the sides and also the head with thin gray pubescence; its 
antenne shorter than the body, coarse, and the joints becoming suddenly shorter after 
the fourth; its under side blackish brown, the legs pale chestnut. 
This species is of the same color with 2, tomentosus of Haldeman, which, however, 
is larger, with gray hairs instead of black, and the wing-covers with ocher-yellow 
spots and streaks. (Fitch.) 
18. THE COMMIXED LEPTOSTYLUS, 
Leptostylus commixtus Haldeman. 
Order COLEOPTERA; family CERAMBYCID#. 
A small long-horned beetle occurring on the leaves of the pine in July, its appear- 
ance and shape closely like that of the prickly Leptostylus No. 4, Plate 1, Fig. 4, and 
its larva probably having similar habits and the same form; the beetle 0.25 to 0.36 
long, its thorax closely punctured, blackish obscurely varied with ash-gray and with 
elevated black dots placed symmetrically, the sides convex and with a small angular 
tooth back of their middle; its wing-covers coarsely and closely punctured, dull and 
gray varied with paler gray and with black clouds and dots, two faintly elevated ribs 
on each wing-cover of a slightly paler gray tint alternated with black dots, the inner 
rib having an elongated black spot near its base, another beyond the middle, and a 
third one farther back, formed by obscure dusky transverse clouds which cross the 
ribs at these places; the sides black, alternated with a whitish cloud-like spot near the 
base, and a smaller one near the middle. (Fitch.) 
19. Tur LESSER PINE-BORER. 
Asemum mastum Haldeman. 
Order COLEOPTERA; family CERAMBYCID©. 
Perforating the trunk of the white pine in all directions and sinking into the heart 
of the tree, making a flattened cylindrical hole or mine when seen in outline; a rather 
small larva, which emerges late in May through 
oval holes in the bark, especially around the base 
of the trunk; the beetle blackish brown with short 
antenne and legs. 
The transformations of this common 
borer, which apparently attacks the tree 
in health as well as in disease, like the 
species of Monohammus, were first briefly 
described and figured in our “Guide to the 
. : Fic. 70.—a, Larva; b, pupa and beetle 
Study of Insects” from specimens found ~ (enlarged twice) of the lesser pine- 
in all stages under the bark of the oak ?™—?rem Packard. 
early in May at Salem, Mass. I have also received a larva of this 
species from Dr. Shimer, which was found by him boring in the grape- 
vine. Since then Mr. Riley has bred it from the Scotch pine, and Mr. 
Schwarz has found the pupa under the bark of pine stumps in Florida 
