OCR Text |
Show 1906.] COLEOPTERA OF THE GENUS SCIOBIUS. 255 This is evidently a well-defined species, but I have been unable to find it among the material at m y disposal. The description is transcribed from Boheman. In general structure it would appear to come nearest to planipennis, but the green scaling is a very distinctive feature. 15. SCIOBIUS TENUICORNIS, sp. nov. (Plate XVIII. fig. 9.) Long. 8f-10, lat. 4|-4f m m. Head moderately transverse, with shallow confluent punctuation and thin grey pubescence, which is denser beneath and round the eyes; forehead almost plane, scarcely impressed in middle; eyes convex, but hardly prominent. Rostrum longer than broad, basal margin obtusely angulate, sides parallel to near apex, gena? rounded and slightly dilated; upper surface plane, confluently punctured, tricarinate, the outer carina? straight and parallel to near apex, then rapidly divergent. Antennce very long and slender, piceous, with fine gre}r pubescence; scape narrow, subcylindrical, distinctly curved at middle and abruptly clavate; funicle with third joint longer than first, terminal joints very elongate. Prothorax moderately transverse, truncate at base and apex, the latter a little narrower, sides slightly rounded, broadest about middle; upper surface slightly convex, rather closely set with small, often elongate, granules, and with a very shallow rounded impression on each side near base ; colour black, with thin greyish or yellowish pubescence which is denser laterally. Elytra broadly ovate, gently sinuate at base, sub-acuminate at apex, sides strongly rounded, broadest before middle; upper surface depressed, but slightly convex, steeply declivous behind and subcompressed before apex, with distinct stria? containing shallow punctures, separated by small granules and continued to near apex, the intervals of equal width, rather broad, almost plane and distinctly coriaceous; colour black or piceous brown, almost bare above, the inflexed margins with a very broad continuous stripe of dense yellowish pubescence. Legs long and slender, black, or ferruginous brown with the knees and tarsi black ; anterior tibia? straight externally, the tarsi rather elongate. T Y P E 2 in the British Museum. N A T A L . Z U L U L A N D : Eshowe (A. Windham). *16. SCIOBIUS LATIPENNIS Fahr. S. latipennis Fahr. op. cit. p. 30. Long. 6|, lat. 34 m m. Head moderately transverse, piceous, aciculate ; scaling whitish, sparse, but forming a dense ring round the eye ; forehead plane and with a shallow central impression ; eyes not very prominent. Rostrum scarcely longer than broad, subquadrate, sides gently sinuate, gena? only slightly and roundly dilated; upper surface plane, with three narrow carina?, the central one lower and not |