OCR Text |
Show 1889.] COLLECTED IN VENEZUELA. 287 the frontal elevations strongly raised, narrowly transverse ; clypeus triangular ; terminal joint of the palpi acutely pointed ; antennae black, the basal four joints fulvous ; thorax transverse, about one half broader than long, strongly narrowed at the base, the angles not produced, the surface with an obsolete oblique depression at each side, very minutely punctured when seen under a strong lens : elytra widened towards the middle, extremely closely punctured, the punctuation consisting of small and still smaller punctures; each elytron with the following black spots-one on each shoulder, three placed transversely across the middle (the centre spot on the sutural margin), four slightly larger spots below the middle forming a semicircle, and one at the extreme apex of each elytron. Colonia Tovar. This species forms another addition to those constituting the genus Malacorhinus described by myself in the ' Biologia Centrali- Americana,' from all of which it differs in the number and position of the elytral spots : the thorax in all is posteriorly narrowed, the tibiae have a minute spine (sometimes almost invisible), the first joint of the posterior tarsi is as long as the following joints together, the claws are appendiculate, and the anterior coxal cavities are open. In general appearance the species of this genus resemble those of the genus Diabrotica, and seem to inhabit principally Central America. LOCHM^EA TROPICA, n. sp. Broadly ovate, black; above dark fuscous ; head and thorax finely rugose ; elytra with the sutural and lateral margin and two narrow longitudinal costae testaceous. Length 2g lines. Head finely rugose, the sides of the vertex and the clypeus testaceous ; labrum black, shining ; antennae about half the length of the body, black, the third joint the longest; thorax short and transverse, narrowed at the middle, the angles tuberculate, the sides rounded at the middle, the surface transversely depressed, finely rugose, fuscous, the anterior and posterior margins paler ; scutellum truncate at its apex, nearly black, finely rugose; elytra broader than the thorax, widened below the middle, rather convex, fuscous; the narrowly raised sutural and lateral margins, and two equally narrow longitudinal costae at the middle of the disk and not quite extending to the apex, testaceous, the interstices everywhere finely rugose and wrinkled ; legs black, unarmed ; claws bifid ; the anterior coxal cavities open. Colonia Tovar. This species has entirely the appearance of an Adimonia, but the open coxal cavities would place the insect in Weise's genus Lochmcea. SCHEMATIZA FUNEREA, n. Sp. Elongate, parallel, black ; the terminal joints of the antennae fulvous ; the entire upper surface finely rugose, opaque ; elytra with faint traces of lighter bands at the sides. |