STATE AGRICULTURAL SOCIETY. 
193 
OAK. TRUNK. 
in its appearance. This beetle is half an inch long and scarcely a third 
as broad, of a black color, its wing-covers chestnut red, its surface having 
a marbled appearance, produced by short prostrate hairs ot a dull ochre 
ve llow color, except on the anterior half of the wing-covers, where they 
are gray, and are here followed by a tawny brown spot destitute of these 
paler hairs. It has only been found, as yet, in the State of New York, in 
the northern sections of which it is not rare. 
300. Tuunderbolt, Arhopalus fulminant, Fabricius. (Colcoptcra. Cerambycidsc.) 
Excavating a burrow in the soft sap-wood, about three inches long and 
0.20 in diameter, this burrow having the shape of a much bent bow or a 
letter U ; a worm similar to that of the apple-tree borer, which passes its 
pupa state in the same cell and produces a long-horned beetle which comes 
abroad the beginning of July, and is three times as long as broad, varying 
from a half to nearly three-fourths of an inch in length, of a black color, 
with transverse zigzag gray lines often broken into small spots on its 
wing-covers, and readily distinguished from all other species by its thorax, 
which is nearly globular and gray, with a large egg-shaped coal-black spot 
on the middle of its upper side. 
301. WniTE-BANDED PiiymAtodes, Phymatodcs albofasciatus, now species. (Colcoptcra. 
Cerambycidoo.) 
A black long-horned beetle 0.25 in length or slightly less, and about a 
third as broad, somewhat flattened, clothed with fine erect gray hairs, its 
wing-covers with two distinct slender white bands which do not reach the 
suture, the anterior one more slender than the hind one and curved, the 
antennae and slender portions of the legs usually chestnut colored. 
Several specimens of this beetle were met with a few years since, the 
last of May, on the trunk of a black oak, in which, it is probable, their 
younger state had been passed. It is closely related to the black varieties 
of P. varius Fab., but is a third smaller, with the white bands much more 
slender, and the surface of the wing-covers arc perceptibly more rough 
than in my specimens of that insect, notwithstanding their smaller size. 
Its thorax is densely punctured, with a short smooth stripe between the 
centre and the base. One of the specimens varies in having the posterior 
white band wholly wanting. 
Several others of our long-horned beetles aro usually found upon oaks, 
in the trunks or limbs of which the larvae probably reside. 
302. Tooth-legged BurnESTis, Chrysobothris dentipes, Germar. (Colcoptcra. Bu- 
prcstidco.) 
A slender, winding, serpent-shaped worm-track between the bark and 
wood of newly felled trees ; formed by a white footless grub, its anterior 
end enormously large, round and flattened ; sinking itself probably slightly 
into the wood to pass its pupa state ; producing a flattish oblong purplish- 
black beetle about 0.50 in length, coppery beneath, its faoo brassy and 
