OCR Text |
Show 1906.] COLEOPTERA OF THE GENUS SCIOBIUS. 253 narrow carina?, the outer ones often indistinct. Antennce long and slender, piceous, or piceous with the funicle ferruginous, with very fine thin pale pubescence; scape subcompressed, strongly bisinuate, rather abruptly clavate, funicle with the third joint much longer than the first, subterminal ones elongate. Prothorax very short, strongly transverse, basal margin arcuate or sub-bisinuate, sides rounded, broadest near base, broadly constricted near apex, which is truncate and much narrower than the base ; upper surface convex, closely set with small depressed granules and with a short longitudinal impression on each side of the base; colour black, granules bare, the interstices with fine grey pubescence, which is denser laterally. Elytra suborbicular, jointly sinuate at base, sides strongly rounded, broadest at middle ; upper surface convex in 2 > subdepressed in S } punctato-striate, with the stria? deeper laterally and containing rows of shallow punctures separated by small granules, the dorsal intervals broad and almost plane, smooth and coriaceous, the lateral ones subconvex, the seventh and eighth bearing rows of granules, which are sharp and prominent in the 2 » but inconspicuous in the <$ ; colour black, with very sparse, fine, setiform, grey scaling. Legs slender, thicker in the <$, piceous, with thin pale pubescence, the anterior pairs of tibia? broader and more strongly curved in the S • T Y P E S O" $ in the Stockholm Museum. P O N D O L A N D : Port St. John (G. Shortridge). Including the types, I have seen only one <5 and three $ 2 of this species; yet I have little doubt that the deplanatus of Boheman must be regarded as the 3 of his granipennis, for the differences in the shape of the legs and elytra are evidently of a sexual character only. The almost circular elytra and the strongly narrowed thorax give this species a very distinct appearance ; when viewed from above the elytra of the 9 appear to be crenulated all round owing to the sharp lateral granulation. 13. SCIOBIUS PLANIPENNIS, sp. nov. (Plate XVIII. fig. 7.) Long, tf 7f, 2 9 : lat. 6 ^, $ 5 m m. Head transverse, slightly convex, rather coarsely striolato-punctate, with thin pale pubescence ; forehead not impressed ; eyes convex but not prominent. Rostrum distinctly longer than broad, sides subparallel; gena? rounded and scarcely dilated, similar in the two sexes; upper surface plane, confidently punctured, tricarinate, the outer carina?straight and parallel. Antennce elongate, piceous, with pale grey pubescence; scape compressed, distinctly sinuate and gradually broadened from base to apex; funicle with third joint much longer than first, terminal joints elongate and distinctly clavate. Prothorax distinctly transverse, subtruncate at base and apex, narrow apically, sides slightly rounded, broadest rather before middle; upper surface subdepressed, closely set with low granules, with a very shallow central furrow and a deep longitudinal impressed line on each side of base ; colour black, with very thin pale |