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Show 1890.] COLEOPTERA FROM CENTRAL AFRICA. 485 PARCEME VERRUCIFER, n. sp. P. (Corethrogaster) annulipedi, Chevr., multo robustior, cinna-momea, breviter pubescens ; genis ante oculos, mandiballs femori-busque apice nigris; thorace latiore, transverso tuberculo dis-coidali valde elevato, laterali mediano obtuse conico, lateribusque posticis valde sinuatis, angulis posticis prominentibus. Long. 33 millim. 2 • Of similar elongate form to P. annulipes, but broader, rufescent-cinnamon in colour, with the short genae in front of the eyes, antenniferous tubercles, and mandibles blackish, and the apical fourth of the femora and extreme base of the tibiae also black. The whole surface is sericeous-opaque, the elytra very minutely and closely punctulate-rugoso, with two extremely narrow costae on each, the apices conjointly rounded, without trace of sutural tooth. The thorax is nearly twice as broad as long;, the surface with many (four or five) flatfish tubercles on each side and one in the middle of the disk elevated and subcompressed; the medio-lateral tubercle is very broad, subconical, and the sides behind it rather deeply sinuated in connection with a strong transverse subbasal groove. The antenna. reach to about four fifths the length of the elytra; the scape is thick, oblong, abruptly constricted at the base, longer than the third joint, which as well as the fourth is shorter than the fifth and following; the second, third, and fourth are slightly nodose at the apex, fifth and tenth subserrated. The antenniferous tubers are acutely dentiform. The elytra are unarmed at the sutural apex, very densely subconfluent punctate and pubescent. By the proportions of the third to fifth antennal joints and the slight nodosity of the second to fourth, this large species appears to belong to Parceme rather than to Allogaster. Unfortunately the female only is known. XYSTROCERA NIGRITA, Serville. This species seems to be very widely distributed in Tropical Africa. Serville described it from Senegal examples. The specimens from the R. Aruwimi do not differ from others found in Usambara, E. Africa, with which I have compared them. CALLICHROMA FRAGRANS, Dalman, Schonh. Syn. Ins., App. p. 150. A robust species with concolorous elytra, i. e. without lighter sutural stripe, and distinguished from its nearest allies by the patches of dense silky golden-tawny pubescence on the sides of the ventral segments. The thorax is very finely transversely striated, the striae broken and granulated on each side of the disk. In Dalman's described examples from Sierra Leone the antennae and legs were wholly rufous; but the colour of the antennae is variable, being sometimes dark reddish brown with the scape rufous, or entirely reddish brown and even black. I have seen specimens from Sierra Leone, Cape Coast Castle, and Cameroons. The two examples from the Aruwimi have dark antennae. P R O C ZOOL. Soc-189U, No. XXXIII. 33 |