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Show 486 MR. H. w. BATES ON [June 17, CALLICHROMA AFRUM, Linn. Recorded from several distant points along the West-African coast-Loango, Old Calabar $ and Sierra Leone. CALLICHROMA BARBIVENTRIS, n. sp. C. afro (Linn.) affinis ; differt thorace haud passim transversim striato, disco utrinque granuloso nigro-velutino, ventreque dense fulvo-hirsuto. Long. 18 millim. Similar in form and colours to the Tropical-American C. rugicollis (Guer.). Bright metallic green ; elytra darker and velvety opaque, with a sutural vitta narrowing and ending before the apex of the scutellum, transversely pubescent and yellow; labrum, antennae, and legs red. The head is densely confluent punctulated; the scape short, subovate-clavate, and transversely rugose.- The thorax is moderately long, the anterior constriction slight, the posterior stronger and with two transverse wrinkles in the groove ; the surface is transversely wrinkled only on the two anterior slight elevations and partially on the sides, the middle part being closely confluent punctulate, with a dark velvety patch on each side. The scutellum is densely punctulate and opaque. The underside is lighter metallic green with a silky-tawny pubescence, which (at least in the male, the only sex known) on the metasternum and the middle of the ventral segments is long and erect. The fifth and sixth ventral segments are both very deeply emarginated in the same sex. C. piliventris (Bates), from the Gaboon, which is similarly pubescent on the underside, much denser in the male than in the female, and has also deeply emarginated fifth and sixth segments in the male, is a more robust insect, with broader thorax, and differs, moreover, in the black colour of the antennae and tibiae and the pale hind tarsi. CALLICHROMA ? An apparently new species, but the single example is in too mutilated a condition to be satisfactorily described. MECASPIS SETULICOLLIS, Quedenfeldt, Berl. ent. Zeits. 1882, p. 327. A single very imperfect specimen agrees well with the above-cited description dfawn Up from Angola examples. The species is very closely allied to M. subvestita (Bates) from the Gaboon, differing only in its greenish-blue colour (M. subvestita being violaceous) and the much fiber Sind more scattered punctuation of the more elevated part of the' el)'trfl. PBILEMATITJM VIRENS, Linn. Mus. Lud. Ulr. p. 73. A widely distributed insect oh the West Coast of Africa. Linnaeus galve the erroneous locality " America " to the species, for which, in the 12th ed. of the ' Systema Naturae,' he substituted "India." Olivief confounded it With a West-Indian species, and consequently |