192 
REVISION OF TIIE BUPRESTID/E OF TIIE UNITED STATES. 
The figure of C. virginiensis given by Laporte and Gory, and cited above, represents 
very well this species, which is also considered by Dr. Fitch as being Drury’s: Herbst’s 
description makes mention of the fine sculpture of the elytral impressions, and of the acu¬ 
minate suture, characters not found in the one now under consideration, and which toge¬ 
ther with the obscure colour, fix the above mentioned No. 3, as the one described by him. 
b. Elytra margine pone medium fortiter serrato: thorax canaliculatus. 
0. C. campestris. Buprcstis campestris Say, Journ. Acad., 3, 165, Ain. Ent. tab. 20. 
£iiprcstis substrijosa Lap. and Gory, 2, 13, tab. 3, fig. 10. 
Middle States and Western States rare: found according to Say on the Arkansas river. 
This species agrees very well with Say’s description, but very badly with the figure, 
which represents a smaller insect, with more distinct elytral costae and no impressionsj 
though the latter are mentioned in the text. 
7. C. Langeri Cbevrolat, Rdvue and Mag. Zool., 1854, tab. 0, fig. 1. 
Louisiana, near New Orleans. Though evidently very nearly related to the preceding, 
I am induced to place this as distinct, on the authority of Mr. Chevrolat, who, having 
compared them, has kindly sent me the following notes: 
“ The species which I refer toC. campestris ( prionoptera Dej.) is smaller, narrower, 
parallel, obscure above, dull metallic beneath, slightly pubescent, and with the punctures 
shallow and confluent: the elytra have four straight nervures, and three median depres¬ 
sions: the groove of the thorax is deeper, strongly channeled, and on each side margined. 
In C. Langeri this channel is visible for only three-fourths the length, and presents a 
slight flattened elevation near the anterior margin: moreover, the thorax is nearly trian¬ 
gular, and the elytra are more dilated.” 
A specimen from Texas in the collection of Mr. II. Ulke, which I refer to this species 
is 13 unc. long; the thorax is angulated on the sides just before the middle, then narrowed 
to the apex; the dorsal channel is shallow, and has a smooth medial line. In other re¬ 
spects it agrees with C. campestris. 
Psiloptera Sol. (emend. Lac.) 
Our species have the appearance somewhat of gigantic Dicercae, and are nearly related 
to the Mexican Buprestis Drummond i, Lap. & Gory; it is not indeed impossible that 
one of them may be identical with that species. 
The genus will be readily known by the very obtuse mandibles, the antennal pores 
visible only on the inferior margin, and the equal joints of the tarsi. On the lateral sur¬ 
faces of the 7th and following joints of the antennae is seen a deep elliptical fovea, on the 
