OCR Text |
Show 1905.] OF PHYTOPHAGOUS COLEOPTERA. 421 O e d io n y c h is MILLEPORA, sp. 11. Under side and legs dark brown ; tlie head black at the vertex, testaceous lower down ; antennae (the basal joints excepted) black ; thorax testaceous, impunctate ; scutellum black; elytra testaceous' closely and finely punctured. Length 4-41 millim. Head rather strongly punctured at the sides of the vertex, the latter bluish-black; clypeus testaceous, strongly carinate at the middle, the anterior portion forming a transverse ridge ; antenna; black, the lower three joints more or less stained with flavous, third and fourth joints equal, terminal joints rather short and stout; thorax short and transverse, nearly similar to that of 0. obscuripennis Jac., with a narrow transverse sulcus each side of the basal margin, the disc impunctate ; scutellum black ; elytra of the same shape and punctuation as in 0. obscuripennis ; prosternum very narrow and elongate, also carinate, fulvous ; under side and legs piceous. Hab. Colombia ; also Mexico. The testaceous colour of the anterior portion of the head, the distinctly punctured vertex, and the colour of the antennae and under side separate this species from the preceding one, and the partly testaceous head from 0. obscuripennis. O e d io n y ch is d is t in c t a , sp. 11. Convex, widened posteriorly, testaceous ; terminal joints of antennas black ; thorax with strongly rounded and deeply sulcate sides, impunctate ; elytra deeply, closely and strongly punctured, more finely and closely so towards the apex. Length 8 millim. Head with a few deep punctures at the vertex, deeply and broadly sulcate between the eyes, the latter widely separated, frontal tubercles rather obsolete ; carina broad anteriorly; clypeus perpendicularly deflexed, bounded by an acute ridge above ; antennae robust, black, the lower four joints testaceous, third joint shorter than the fourth, the following joints also less elongate than the fourth one; thorax not more than twice as broad as long, rather wider at the sides (longitudinally), the latter strongly rounded, with broadly flattened sulci, the anterior angles slightly mucronate, the anterior margin deeply concave at the middle, the disc impunctate; elytra strongly widened at the middle and convex, the reflexed margins not very broad, the surface deeply and closely punctured anteriorly, intermixed with some smaller punctures, the posterior portion extremely closely and more finely punctured ; metatarsus of hind legs very short; claw-joint very strongly inflated. Hab. Colombia. More strongly punctured and convex than most of the allied species, the thorax of characteristic shape, and the antennas with pale basal joints. |