a. 
~e. 
162 | INSECTS INJURIOUS TO FOREST AND SHADE TREES. 
narrowed, and the characters above detailed prove it to be very distinct from that 
species. The lepaceous processes of the antenne are so profoundly emarginate beneath 
as to appear each bilobate. I obtained it on the Arkansas River near the mountains. 
(Say.) 
28. Hrgates spiculatus Leconte. 
Bores in Pinus ponderosa in Colorado. (A. S. Fuller. Amer. Ent., 
iii, 238.) 
Cryocephalus nubilus Leconte. 
Larva boring in roots of yellow pine (Tampa, Fla.), the beetle appear- 
ing in April. (E.A. Schwarz. Amer. Ent., iii, 238.) 
29. HARRIS’S PRIONUS. 
Tragosoma Harristi Leconte. 
Order COLEOPTERA; family CERAMBYCIDE. 
A beetle closely resembling the preceding, but with much shorter antenne, only , 
one tooth on each side of the thorax, and several raised lines on the wing-covers. 
This rare insect, which has only been found hitherto in New England 
and Newfoundland, inhabits New York also, and I infer it to be bred in 
the pine, having in one instance met with the beetle, dead, under the 
loose bark of one of these trees. (Fitch.) 
“A specimen of this species was found by Mr. Gibbs east of Fort 
Colville [Oregon]. It probably extends its range across the continent 
in more northern latitudes.” (Leconte, Proc. Acad. Nat. Se. Phil., Nov., 
1861, p. 354.) Mr. George Hunt has collected it among the pine forests 
of the Adirondacks, Northern New York. 
30. THE RIBBED RHAGIUM. 
Rhagium lineatum Olivier. 
Order COLEOPTERA ; family CERAMBYCID®. 
Common in the pitch-pine, several often in the trunk of the same tree, excavating 
a broad irregular patch in the outer surface of the sap-wood, the cavity being mostly 
filled with sawdust; a yellowish-white grub about an inch long, divided into seg- 
ments of nearly equal length and width, except the second which is the broadest, and 
the last which is narrowest with its end rounded; surrounding itself with a broad 
oval ring of woody fibers, like short threads, placed between the bark and the wood, 
in which to pass its pupa state; changing to a beetle, which lies in the same cell 
through the winter and comes abroad in the spring; the beetle 0.40 to 0.70 long, 
long and narrowish, its head and thorax much narrower than the wing-coyers, eylin- 
dric, clothed with soft gray hairs upon a black ground, the thorax with a black 
stripe above and one on each side, where is also a stout spine; the antennze only 
reaching the base of the wing-covers, which are dull yellowish gray variegated with 
black, each with three elevated lines, the outer two uniting at their tips. (Harris’s 
Treatise, page 102.) 
We have found the beetles and pup of this beetle under the bark of 
a white pine log, at Salem, Mass., in abundance in October, and have 
also detected it frequently in Maine in the same situations in’the spring, 
April 24, both in the larval and adult state. 
