1*22 
what enlarged, and the minute but sharp jaws appaiently project 
from its front. In October they bore obliquely into the deepey layers 
of the wood, often one to two inches from the surface, and then 
usually follow the grain up or down some inches, and turn obliquely 
outward until within about an eighth of an inch of the suilace 
wood, though this distance varies much. The last inch or there¬ 
abouts of the burrow is greatly widened and ends with an obliquely 
rounded termination. The long, slender larva, towards the last of 
this month and throughout the autumn and winter following, may 
be found in the enlarged portions of its burrow with its head and the 
first third of its body closely bent backward on the remaining two- 
thirds of the length, and in this folded form filling the cavity gnawed 
for itself in the wood. The bend of the body is always sideways, 
and usually to the left. 
About the middle of May the larvae transform, and the pupae are 
found with their heads occupying the position of the fold just men¬ 
tioned and next to the rounded end of the burrow. The ventral side 
is always outward, that is, toward the surface of the tree. Tw t o weeks 
or thereabouts later the pupae become perfect beetles, and about 
the first to the middle of June escape by gnawing outward, making 
in so doing a very different cut from that previously made by the 
larvae. Heen from without, the hole is doubly convex, the curvatures 
being quite unequal, and meeting at a sharp or slightly rounded 
angle on either side. As the insect emerges, its back is pressed 
against the strongly convex side of the excavation. 
The beetle is about half an inch long, slender and sluggish. It makes 
little or no effort to avoid capture, which is easily enough done. It 
appears to pass the night at rest in crevices, etc., and moves about 
only during sunny weather. Eggs are deposited within a few 
days after the mature beetle gains its freedom. It is thus described 
by Say: “Body cylindrical, olive-green, granulated; head punctured, 
with a profound sinus each side for the reception of the antennae, 
tip rounded; eyes whitish, with a black,£ oblong, moveable pupil; 
thorax with an oblique indented line each side, and a longitudinal 
dorsal one; basal edge sinuated; scutel transversely elongated, with 
an impressed transverse line behind; elytra scabrous or granulated, 
without striae or punctures; an elevated longitudinal line, and an 
indented large spot at base; tip serro-dentate. Length two-fifths of 
an inch, nearly. This species has three hardly visible fulvous spots 
on the elytra; one on the depressed base, one near the suture 
before the middle, and one behind the middle, also near the suture. 
I have a specimen in which these spots are not at all visible. The 
elevated line at the posterior angles of the thorax is short, but very 
obvious.” 
