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Show 78 DR. A. GtTNTHER ON THE ZOOLOGICAL [Feb. 6, PALPICORN IA. TROPISTERNUS LATERALIS, Fab. This species has already been recorded from the Galapagos, and appears to be common there. Hab. Charles Island (Darwin and Cookson). NECROPHAGA. ACRIBIS, gen. nov. Head large, broad, convex above ; epistoma slightly produced, narrow; antennae about as long as the head, 1st joint rather elongate, 2nd short obconic, 3rd as long as the 2nd and more slender, 4 th to 7th becoming gradually shorter, 8th nearly globular, the 9th, 10th, and 11th forming a large ovate compressed club. Intermediate legs retractile; posterior femora partially covered by the posterior margin of the metasternum. Basal segment of the abdomen large, the 2nd and 3rd very short. Closely allied to Clambus, which it resembles in general form. ACRIBIS SERRATIVENTRIS, sp. n. Subglobosus, niger, nitidus, discrete subtilissime punctulatus; capite subtus antennisque piceo-testaceis ; elytris apice obtuse rotundatis; abdomine piceo, segmentis marginibus minute ser-ratis. Long. § millim. Build of Clambus minutus, but smaller and not so much narrowed posteriorly. Shining black. Head large, very broad and very convex, angular at the sides, emarginate on each side of the base of the epistoma at the insertion of the antennae. Thorax ample, the whole surface marked with fine transverse scratches, and sparingly and very finely punctured (as are also the head and elytra), each puncture bears a short fine black hair; the posterior angles are broadly rounded Scutellum triangular, short, and very broad. Elytra convex, but less so posteriorly, a little longer than broad, not much narrowed towards the apex, which is broadly rounded. Underside. - Head beneath pitchy testaceous. Thorax below deeply excavated for the reception of the head in repose. Intermediate legs, when retracted, completely hidden by the posterior portion of the mesosternum. Metasternum a little snorter than the basal segment of the abdomen, with its posterior margin slightly flexuous in the middle. Posterior femora rather large, well separated from each other at their bases ; tibiae about § the length of the femora: posterior tarsi as long as the tibiae, rather stout. Abdomen pitchy, the margins paler, the margins of the 1 st to 4th segments serrate or, rather, minutely toothed like a comb; the basal segment, as well as the sterna, are distinctly and moderately thickly pencilled. Hab. Charles Island (C. Darwin). PHALACRUS DARWINII, sp. n. Oblongo-ovalis, convexus, piceo-niger, nitidissimus ; antennis pe- |