OCR Text |
Show 1887.] PHYTOPHAGOUS COLEOPTERA OF CEYLON. 99 margin with a short perpendicular groove. Elytra distinctly punctate-striate ; their epipleurae very broad, concave, and continued to the apices; posterior femora strongly thickened; tibise not channelled, the posterior ones with a short spine ; the first joint of the posterior tarsi as long as the two following joints together; claws appendiculate. Prosternum broad, one half longer than broad. Mesosternum transversely quadrate. Anterior coxal cavities open. The rounded convex shape, the short perpendicular basal grooves of the thorax, in connection with the punctate-striate elytra, the broad prosternum, and open coxal cavities separate this genus. THRYL_EA VARIABILIS, sp. nov. Reddish fulvous; head, thorax, and the legs black ; thorax distinctly punctured ; elytra strongly punctate-striate, dark fulvous. Var. Fulvous ; elytra black, the suture and the apices fulvous. Length 1 line. Head impunctate, the clypeus thickened; labrum margined with fulvous. Antennse about half the length of the body, black, the apices of the first five joints stained with fulvous; the second joint as thick, but half the size of the first, the third and the two following joints nearly equal, shorter and thinner, the rest more flattened and dilated. Thorax transverse, rather more than twice as broad as long, the sides straight, the anterior angles oblique forming a thickened angle before the middle; surface finely but distinctly and not very closely punctured, black. Scutellum fulvous. Elytra rounded, strongly and regularly punctate-striate, the interstices with a few fine punctures, slightly convex near the sides and apices, the shoulders thickened and somewhat prominent. Legs black ; tarsi piceous. Bogawantalawa. MORYLUS (gen. nov. Halticinorum). Body ovate. Antennae slightly widened at the terminal joints, the third and fourth joints equal. Thorax transverse, without depressions, the anterior angles oblique. Scutellum broader than long. Elytra irregularly punctured, their epipleurae extending below the middle. The posterior femora strongly incrassate, their tibise deeply longitudinally channelled, armed at the apices with a small spine; the anterior tibiae unarmed. Claws appendiculate. Prosternum very broad. Mesosternum more than twice as broad as lohg. Anterior coxal cavities open. Morylus agrees with Sebaethe, Baly, in the deeply sulcate posterior tibise, but differs in the shape of the thorax, the sides of which are straight, not flattened or margined, and in the broad prosternum. MORYLUS FULVIPENNIS, sp. nov. Black, head and thorax impunctate; elytra fulvous, depressed below the base, very closely and distinctly punctured; legs black. Length 1| line- Head entirely impunctate, the frontal elevations in shape of nanow 7* |