152 INSECTS INJURIOUS TO FOREST AND SHADE TREES. 
side, with apical and basal shining smooth rugosities; a definite dorsal 
deep furrow with smooth sides, somewhat interrupted in the middle ; 
elytra densely punctured, with alternate oblong, raised, shining inter- 
stitial spaces, prolonged entire to the apex; length, 0.57 to 0.75 inch. 
Male with the pectus broadly sulcate, villose; the intermediate tibize 
armed with an internal acute tooth; the last ventral segment truncate- 
emarginate. Female with the pectus smoother, less sulcate; the last 
ventral segment tridentate; the intermediate tooth obtuse, defined by 
minute incisions. 
Abundant at Lake Superior; according to Kirby found in latitude 
65° and in the Rocky Mountains. In addition to the characters given 
above, Leconte adds that the under surface is copper-colored, coarsely 
and densely punctured on the sides, abdomen and prosternum, less 
densely on the metasternum and middle of the first segment of the ab- 
domen; the divided portions of the mesosternum are coarsely and tol- 
erably densely punctured. The outer coste of the thorax are interrupted 
so as to form on each side an apical and basal callosity. A female from 
Newfoundland differs by the epipleurz being green, the under surface of 
the prolonged extremity of the elytra blue, and by the incisures between 
the anal teeth being more widely separated. (Leconte.) 
Mr. George Hunt has found this beetle under the bark of the white 
pine in the Adirondack Mountains, New York, in October. 
17. THE COMMON LONGICORN PINE-BORER. 
Monohammus confusor Kirby. 
Order COLEOPTERA; family CERAMBYCIDE. 
Boring a hole,in outline round and regular, deep in the wood of sound, though 
usually in decaying, trees, and doing much injury to pine timber; a large, soft, white, 
fleshy, nearly cylindrical grub, the segment next the head larger than the others, 
flattened, horny and inclined obliquely downward and forward, the succeeding rings 
very short, with a transverse oval rough space on the middle above and below, pupat- 
ing inside in the wood, the beetle emerging from a round hole half aninch in diameter ; 
the beetle one of our largest longicorns, with very long antennie; the body brownish- 
gray, the wing-covers spotted with black and white; length 1.20 inch. 
Nothing was known of the habits of this borer by Harris, in the third 
edition of whose treatise the beetle is well figured. In 1860, Dr. Fitch 
gave an excellent account of the habits, and a brief description of the 
larva and pupa and adult, in his Fourth Report on the Noxious Insects 
of New York. The following description of the larva and pupa is based 
on specimens obtained at Brunswick, Me., and compared with some 
received from Mr. F. C. Bowditch, who published in the American Nat- 
uralist, August, 1873 (p. 498), an account of the habits and transforma- 
tions. He sent me a block of pine wood split off, containing the ter- 
minal portion of the cell, stuffed with large chips arranged quite regu- 
larly. In the museum of the Peabody Academy of Science, at Salem, 
is a piece of planed plank, which had been sawn so as to uncover part 
