OAK-BORERS. 71 
retracted ; 6 very small 3-jointed thoracic legs, the terminal joint being a mere bristle ; 
stigmata quite distinct and brown, the first pair much the largest, between the fold 
of joints 2 and 3 ; the others on anterior fifth of joints 4-11, the last pair more dorsal 
than the rest. Head pale yellow, darker around mouth; rounded, more or less bent 
over the breast, with sparse, stiff, pale hairs springing from elevated points ; ocelli, 
none ; antennse not visible, unless a dusky prominence lying close between mandibles 
and maxillfB be called such ; labium small, with two depressions and other inequali- 
ties, the margins slightly angular, allowing the jaws to closely fit around it; jaws 
stout, triangular, the inner margin produced at middle into a larger and smaller tooth, 
and with a slight excavation near tip ; maxilla? long, with but a short, horny cardinal 
piece ; the palpi apparently 2-jointed and with difficulty resolved, on account of three 
or four other prominences around them ; garnished on the inside with a close row of 
stiff hairs and on the outside with two stouter hairs; labium large, oboval, the palpi 
placed in front and 2-jointed. 
Pupa. — Average length 0.40 inch, with the antennae curled back over the thorax, 
the seven or eight terminal joints each with a more or less distinct, forwardly-directed, 
brown thorn ; the snout lying on the breast and varying according to sex ; abdominal 
joints with a more or less distinct row of small thorns on the posterior dorsal edge, 
the last joint with a more prominent thorn directed backwards in a line with the 
body. (Riley.) 
10. The gray-sided oak weevil. 
Pandeletius hilaris (Herbst). 
Order Coleoptera ; Family Curculionid^:. 
Making a smaller burrow than that of the Northern Brenthian, a worm like that of 
the plum weevil and changing to a gray weevil, found on the leaves 
from May to September. 
Beyond the fact stated by Harris that the larva lives 
in the trunks of white oaks, on which the beetles occur 
from late in May to September, we know nothing of this T 
insect. 
The beetle. — A little pale-brown beetle, variegated with gray upon 
the sides. Its snout is short, broad, and slightly furrowed in the 
middle; there are three blackish stripes on the thorax, between Fig. 21.— Pandele- 
which are two of a light-gray color ; the wing-covers have a broad Smith, del. 
stripe of light gray on the outer side, edged within by a slender 
blackish line, and sending two short oblique branches almost across each wing-cover ; 
and the fore legs are larger than the others. Length from one-eighth to one-fifth of 
an inch. (Harris.) 
11. The quercitron bark-borer. 
Graphisurus fasciatus (De Geer). 
Order Coleoptera ; Family CERAMBYCiDiE. 
Feeding upon and destroyiug the quercitron bark of newly-felled trees, forming 
large tracks filled with worm-dust, a white, footless grub about 0.60 inch long, and 
with a transverse oval tawny-yellow spot on the middle of each wing above and be- 
low ; in June transforming to a long-horned beetle about one-half an inch long, of 
an ash-gray color sprinkled with blackish spots and punctures, and back of the mid- 
dle of its wing-covers an irregular oblique black band; the female with a straight 
awl-like ovipositor nearly one-quarter of an inch in length. (Fitch.) 
