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Show 1906.] COLEOPTERA OF THE GENUS SCIOBIUS. 247 moderately rounded, broadest about middle ; upper surface convex, dispersely granulate and with a rounded lateral impression on each side of the base, the apices of the granules bare, the interstices filled with dense white or yellowish scaling. Elytra ovate, scarcely differing in shape in the two sexes, shoulders very oblique, sides evenly rounded, broadest about middle ; upper surface convex, with shallow stria? containing rows of large shallow separated punctures ; the intervals slightly convex, smooth and finely aciculate, the third rather broader than the others; colour black or dark brown, with white or yellowish scaling, which is denser apically and throughout the third interval, but the scales vary considerably in density in different individuals ; on the apical half the intervals have rows of very short depressed white seta?. Legs piceous, evenly covered with moderately dense white scaling and seta?; in shape and thickness they scarcely differ in the two sexes. T Y P E $ in the Stockholm Museum. N A T A L : Durban (C. tf. Barker, A. D. Millar, <L- H. W. Bell- Marley). Varies a good deal in coloration, some examples having the elytra with alternate stripes of lighter and darker scaling. In the type the scaling is uniform in colour, dense and even throughout the sides and declivity, but somewhat abraded on the disk except for the usual denser stripe on the third interval. 6. SCIOBIUS COGNATUS, sp. nov. (Plate XVIII. fig. 6.) Lonff. 5-5--6-I, lat. 3-3-| m m . Head strongly transverse, coriaceous; the forehead finely plicate, covered with dense grey scaling, and with a slightly raised fold above the eyes, which are prominent. Rostrum subquadrate, the length equal to the width at base ; gena? moderately and roundly dilated, similar in the two sexes; upper surface broadly excavate, evidently tricarinate, the outer carina? distinctly sinuate, the whole surface except the central carina densely covered with grey scaling. Antennce rather short and thick, covered with grey scaling, scape broad curved and compressed, strigoso-punctate; first joint of funicle broader than the rest, a little longer than the third. Prothorax nearly twice as broad as long, base slightly bi-sinuate, apex a little narrower and truncate, sides moderately rounded, broadest about middle ; upper surface convex, dispersely granulate and with a rounded lateral impression on each side of the base, the apices of the granules mostly bare, the interstices filled with dense greyish scaling. Elytra, broadly ovate, jointly sinuate at base, shoulders obliquely rounded, sides moderately ampliated, broadest about middle, similar in the two sexes ; upper surface convex, with shallow stria? containing rows of large deep punctures (partially concealed by the scaling); the intervals rather narrow, smooth and finely aciculate, the third not broader than the others; colour black or dark piceous, covered with dense dull grey scaling, variegated with paler scales which usually form a |