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Show 1906.] COLEOPTERA OF THE GENUS SCIOBIUS. 249 From the former it also differs in its broader scape, rounded gena?, the irregular punctuation of the elytra, and the tuberculation of the intervals. The two latter characters also distinguish it from cognatus, as well as the parallel outer carina? of the rostrum, the more oblique shoulders, the less convex intervals of the elytra, the wide separation of the minute white seta? on the intervals, and the less compressed and less curved scape. *8. SCIOBIUS IMPRESSICOLLIS Boh. S. impressicollis Boh. Schonh. Gen. Cure. vii. 1, p. 199 (1843). Long. 6i-7f, lat. 3i-4i m m. Head transverse, almost plane, finely plicate ; forehead not impressed ; eyes not prominent. Rostrum about as long as broad, subtruncate at base, rather narrowed anteriorly, gena? not dilated; upper surface plane, strigosely punctate, distinctly tricarinate, the outer carina? straight and parallel. Antennce moderate, piceous, with sparse grey scaling; scape compressed, strigoso-punctate, strongly bisinuate and gradually thickened to apex ; funicle with the third joint much longer than first. Prothorax very transverse, base slightly arcuate, apex much narrower and truncate; sides parallel for a short distance from base, then rapidly narrowed to apex, thus forming a very distinct obtuse angulation; upper surface slightly convex, closely set with very depressed subconfluent granules and with a deep impressed line on each side of the base; colour black, with sparse grey scaling which is denser laterally. Elytra broadly ovate, jointly sinuate at base, sides moderately rounded, broadest about middle; upper surface convex, with distinct stria? containing shallow punctures separated by small granules which become obsolete behind middle ; the intervals slightly convex, of equal width, transversely rugose, smoother on the declivity, but with traces of small granules; colour black, with thin grey scaling, which is denser laterally. Legs moderate, piceous, with fine grey scaling; anterior tibia? very slight, curved externally. T Y P E 2 m the Stockholm Museum. " C A P E OF G O O D H O P E (Drege)? This description has been made from the type, which is the only specimen I have seen. The strong angulation of the sides of the prothorax is a very distinctive character; apart from this the species much resembles brevicollis Fahr. 2 • 9. SCIOBIUS BREVICOLLIS Fahr. S. brevicollis Fahr. op. cit. p. 29. Long, d 5-6, 2 5Jr-6| ; lat. 6 2f-3i, 2 3^-4 m m. Head transverse, aciculate, with fine grey or yellowish scaling which is denser laterally; forehead with a shallow central impression ; eyes not prominent. Rostrum longer than broad, obtusely angulate at base, sides somewhat sinuate; gena? rounded, scarcely dilated in either sex ; upper surface more or less impressed, finely |