I April, 1S4 4.] 43 This species is confessedly an important addition to the Insect Fauna of the United States, particularly as but another species is known or described, viz., Quadricornis, Kirby. The species is very rare. M A L 1 1 D M, Leach, Er. Olopiium, Erichson. O. emarginatum, Er. — rotundicolle, Say, In our presumed specimens of this species, the thorax at base is almost truncate, the apex but slightly emar-ginate, the lateral margins but slightly piceous, the apex of the elytra, and the posterior margins of the abdominal segments not piceous ; apex of abdomen testaceous, and feet rufous, corresponding in every other respect with Say's description of 0. rotundicolle. Not rare, occurs every spring on the blossoms of Red Maple. Anthobium, Leach. A. dimidiatum. Testaceous; abdomen black. — 1| I. long. *Pennsylvania. Silpha testacea, Melsh, Catal. 344. Head each side between the eyes, with a short, obsolete, longitudinal im-pressed line; minutely and faintly punctured, testaceous with the base dusky : antennae incrassated towards the tip, a little longer than the thorax, testaceous, slightly pubescent; palpi testaceous: thorax some narrower than the elytra, transverse; sides rounded, with the base and apex truncate; anterior angles rounded, posterior ones almost square ; an obsolete, impressed dorsal line, rather most distinct before the posterior margin ; minutely and sparsely punctured, and finely wrinkled, testaceous, longitudinally dusky in the middle : scutel testaceous : elytra twice as long as the thorax, densely and strongly punctured, testaceous : abdomen black, or black brown, slightly piceous, glabrous, acuminate at apex : pectus and feet testaceous ; tarsi dilated. Descriptions of New North American Coleopiera, By Rev. D. Ziegler, of York, Pa.* Oxyprus, Fabr. O. pulcher. Reddish-brown ; elytra, each with a broad oblique whitish band, commencing at the humeral angle and terminating on the posterior margin near the suture. Length nearly 4 lines. Body reddish-brown, polished. Head large, with numerous dilated punc-tures on the occiput, punctures sometimes confluent; three slight indentations nearly on a line between the eyes-; a somewhat prominent, polished, suborbi-cular elevation on the exterior region above the eyes, which is included by a distinct semicircular impression proceeding from the inferior portion of the neck and running nearly parallel with the posterior margin towards the vertex, then curving regularly downward and outward till it reaches the eye, where it becomes obsolete. Mouth pale honey-yellow. Mandibles very robust, as long or longer than the head ; rather much arcuated ; dark reddish-brown, their * Communicated by the Entomological Society of Pennsylvania. 6
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