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Show 288 MR. M. JACOBY ON COLEOPTERA [May 21, Length 2V3 lines. Of rather flattened shape, entirely black ; the head with a longitudinal central ridge, finely rugose, the clypeus and the base of the antennae fulvous or testaceous ; antennae scarcely half the length of the body, black, the three (in one specimen the last joint only) apical joints fulvous, the third the longest, the intermediate joints slightly flattened and widened, closely pubescent: thorax transverse, rather more than twice as broad as long, the sides straight, more or less sinuate or concave at the middle, causing one or two obscure angles, the posterior margins straight; the surface very obsoletely transversely depressed near the base and more broadly at the sides, entirely finely rugose, opaque, the sides furnished with some very minute fulvous hairs; scutellum broad, its apex truncate; elytra very slightly widened posteriorly, the apex rounded, the entire surface finely rugose, black, opaque, with more or less distinct light reflections in the shape of narrow longitudinal bands at the sides ; underside and legs black, the coxae obscure fulvous ; tibiae unarmed, the first joint of the posterior tarsi scarcely longer than the second ; claws bifid; anterior coxal cavities open. San Esteban. SCHEMATIZA VENEZUELENSIS, n. Sp. Black ; the lower part of the face and the apical three joints of the antennae fulvous; above fuscous or black, finely rugose, the sides of the thorax broadly, and a narrow lateral stripe of the elytra obscure flavous. Length 3 lines. Head finely rugose at the vertex, the portion below the eyes and the clypeus fulvous ; labrum and jaws black, shining; antennae rather more than half the length of the body, black, the two or three terminal joints fulvous or testaceous, the third joint very long, longer than the two preceding joints together, the intermediate ones slightly dilated and pubescent; thorax more than twice as broad as long, the sides rounded, the angles with a small tubercle, the surface depressed at the sides, without other grooves, finely rugose, black, the sides broadly pale flavous, the flavous portion narrowed at the base ; elytra finely rugose, the apex rounded, the lateral margin from the base to the apex narrowly flavous ; underside and legs black, the base of the femora flavous. From San Esteban and Colonia Tovar. In this species the third joint of the antennae is very long and slender, differing in that respect from all the other species of the genus with which I a m acquainted, the dilatation of the intermediate joints is also but feebly indicated ; but as I cannot find any other different structural characters I have provisionally placed this insect in Schematiza. SCHEMATIZA UNISTRIATA, 11. Sp. Obscure fuscous, sericeous ; the lower part of the face and thorax pale greyish, the disk of the latter fuscous ; elytra fuscous, the |
