INSECTS INJURIOUS TO THE OAK. at 
The beetle.—Ph. amenus has a reddish body, with Prussian-blue wing-covers. The 
prothorax is just as long as broad, with the sides moderately convex, and broadest 
just behind the middle. The antennw and tibize are blackish brown, the tarsi being 
dull red, the hind pair being darker than the others, and the femora are reddish. The 
prothorax is distinctly punctured, while the elytra are very coarsely punctured. The 
scutellum is pale reddish. It is a quarter of an inch in length. A single specimen 
received from Illinois. 
12. THE WHITE-BANDED PHYMATODES. 
Phymatodes varius (Fabricius). 
Order CoLEopTERA; family CERAMBYCIDZ. 
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 antennze 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 
are perceptibly more rough than in my specimens of that insect, notwithstanding 
their smaller size. Its thorax is densely punctured, with a short smooth stripe be- 
tween the center and the base. One of the specimens varies in having the posterior 
white band wholly wanting. (Fitch.) 
1 have found near Providence several of these beetles, of both sexes, 
running in and out of a pile of oak cord-wood in the forest, May 30, which 
was cut the previous winter. 
13. THE COMMON OAK CLYTUS. 
Clytus colonus. 
Order COLEOPTERA; family CERAMBYCID. 
Mining between the bark and the wood of the oak, up-and down the trunk, and 
making a broad, shallow, irregular groove about 5™™ wide; the larva, pupa, and 
beetle occurring late in May and early in June. 
I have found, in company with Mr. Calder, the larve of this pretty 
beetle in abundance mining under the bark of a fallen (probably white)’ 
oak, near Providence, May 26; several pupz also occurred, one trans- 
forming to a beetle May 27. The mine extends up and down the trunk, 
and is of the usual form of longicorn mines, being a broad, shallow, ir- 
regularly sinuous burrow, and extending part of the way around the 
trunk, the diameter near the end of the burrow being 5™™. 
Mr. George Hunt has found the beetle under the bark of an old sugar 
maple tree in Northern New York, among the Adirondacks. 
Larva.—Head broad; prothoracic segment large and broad, much wider than long, 
with two transverse chitinous portions in front, and one continuous band behind, — 
Body behind rather stout and broad; no callous or fleshy bunches either above or 
below. Length, 13™™; diameter of head across the thorax, 44™™.* 
* This description, to be of much value, should be comparative, but I have at pres- 
ent no other larve of the genus with which to compare those of this species. 
