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Show 98 MR. W. F. KIRBY ON ORTHOPTERA FROM [Feb. 4, M nt Ruwenzori. Two discoloured specimens, apparently belonging to this West- African species. DlCTYOPHORUS. Dictyo])horus Thunb. Mem. Acad. Petersb. v. p. 258 (1815). || Petasia Serv. Ann. Sci. Nat. xxii. p. 278 (1831). 17. DlCTYOPHORUS ANCHIET.E. Petasia anchietce Bolivar, Jorn. Sci. Lisb. xxx. p. 110 (1882). Three specimens from Entebbe, Oct. 1900. Originally described from Angola, but apparently common in East Africa. There are specimens in the Natural History Museum from Abyssinia, Zomba, British East Africa, and Tanganyika. PAMPHAGIN^E. XlPHICERA. Xiphicera Lamarck, Anim. sans Vert. iv. p. 243 (1817). 18. XIPHICERA GIBBA, sp. n. Long. corp. 37 millim.; long. pron. 17 millim. ; long. feni. post. 12? millim. ; lat. 5 millim. Male. Dark red ; vertex longer than broad, granulated, sloping, and projecting in a point scarcely beyond the level of the lower part of the face, to which it slopes gradually down ; antennae, funiculus apparently 6-jointed (the three basal joints hardly separable), followed by a narrower joint but broader than long, two intermediate joints, the first shorter than the other, and the flagellum, which consists of only two joints, one longer than broad, narrowed at the base and truncated at the end, and the terminal joint linear. Pronotum very high, laterally compressed, granulated, pointed in front and bifid behind; in front it slopes upwards to a rounded-off obtuse angle before the middle, and then runs backwards to the extremity almost straight, the hinder part being obtusely denticulated. Tegmina and wings rudimentary ; back of abdomen with small teeth on the median line. Hind femora granulated with white, and with the upper surface straight and serrated, the extremity truncated; the lower edge moderately broadly laminated, denticulated, and with a concavity before the extremity; hind tibia? with strong short spines, eight on the outer edge. A single specimen from between Lake Victoria and Lake Tanganyika. It would probably have fully-developed wings, if mature. Allied to X. spinulosa Saussure and X. haploscelis Schaum. MESAMBRIINiE. Two' immature specimens from Baringo (Dec. 20, 1899) probably belonging to a new genus allied to Mesambria Stal. |