| OCR Text |
Show 1887.] PHYTOPHAGOUS COLEOPTERA OF CEYLON. 77 narrowly black, the latter accompanied by a row of deep punctures. Legs testaceous; all the femora armed with a small tooth. Dikoya. Amongst the many described species of Nodostoma, N. bipunctatum may be known by the very short and transverse thorax in connection with the coloration. NODOSTOMA IMPRESSIPENNE, sp. nov. Entirely testaceous ; the last seven joints of the antennse black ; head and thorax distantly punctured ; elytra with a deep basal depression, the latter strongly, the rest finely punctate-striate ; legs very long. Length 1| line. Head strongly but very remotely punctured; the epistome not separated from the face. Antennse slender, scarcely shorter than the body, the four lower joints testaceous, the rest black, the third and fourth joints slender, equal. Thorax not more than twice as broad as long, the sides angulate near the base, obliquely narrowed towards the apex and slightly rounded before the middle ; the surface with a transverse groove in front of the anterior margin, very strongly but remotely punctured. Elytra narrowed posteriorly, with a deep transverse depression below'the base, testaceous, the sutural and lateral margin narrowly fulvous; the punctuation deep within the depression, very fine at the rest of the surface ; there is also a row of deep punctures placed close to the lateral margin and below the shoulders ; underside and the legs testaceous; all the femora armed with a small tooth. Galle. Closely allied to N. fairmairei, but the thorax is longer, less transverse, and more strongly and remotely punctured, and the legs are much longer in N. impressipenne. NODOSTOMA LEWISI, sp. nov. Testaceous or fulvous ; the apical joints of the antennae black ; head remotely, thorax very closely and strongly punctured, subangulate near the base ; elytra nearly impunctate below the middle, the sutural and the lateral margins black. Var. The disk of the thorax more or less piceous. Length 1-15 line. Head with a few punctures; the epistome more strongly and closely punctured, not separated from the front. Antennse two thirds the length of the body, the four lower and the base of the following joints testaceous, the terminal joints black. Thorax transverse, strongly narrowed in front, the sides distinctly angulate near the base, the surface very strongly or subrugosely punctured. Elytra with a distinct depression directly below the base, the latter distinctly punctured, the punctuation gradually disappearing below the depression; the lateral margin narrowly, the sutural more broadly, black, this colour widened in some specimens towards the base at the suture. Legs with a very minute tooth. Dikoya. |
