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Show 1877-] COLLECTION M A D E BY H.M.S. 'PETEREL.' 79 dihusque obscure testaceis ; elytris punctorum seriebus duabus, singulis stria suturali, antice abbreviata, impressis. Long. 1% millim. Nearly black; the head pitchy. Thorax (when seen under a microscope) sparingly punctured. Elytra with an impressed sutural stria, only visibly punctured when seen under the microscope; parallel to this stria is a row of punctures, a little further removed from the stria than the stria is from the suture ; there is a second row of punctures, but it is not quite so distinct as the first. Hab. Charles Island (C. Darwin). MALACODERMATA. MELYRID^E. ABLECHRUS, gen. nov. Eyes entire, not very prominent. Antennae inserted in front of the eyes, of 9 joints, the 1st joint short obconic ; the 2nd as long as broad; 3rd as long as the first, a little rounded at its base; 4th and 5th as long as the 3rd, subcylindrical; the 6th and 7th a little shorter ; the 8th one third longer than broad, narrowed at its extreme base ; the 9th joint one third longer than the 8th, elongate-ovate, subacuminate at the apex. Thorax convex, transverse, rounded at the sides and behind. Elytra at their base not broader than the thorax, but somewhat suddenly widened below the shoulders, ample posteriorly, rounded at the apex.. This insect closely resembles Ebceus thoracicus in form; the structure of the antennae, however, is quite different, and unlike any genus of Melyridae with which I am acquainted. Its position would be near Ebceus. ABLECHRUS FLAVIPES, sp. n. AEneus, nitidus, vix pubescens; thorace transverso, cum elytris sat crebre evidenter punctato, his thorace fere triplo longioribus, basi thorace haud latioribus, postice ampliatis, apice rotundatis; antennis flavo-testaceis, articulis tribus apicalibus infuscatis; pedibus flavis. Long. 2 millim., lat. I millim. General form that of Ebceus thoracicus, but smaller and relatively a trifle shorter ; thorax rather convex, a little narrowed in front, very finely margined at the sides and posteriorly, distinctly and rather thickly punctured. Scutellum distinct. Elytra at their base not broader than the thorax, but immediately becoming broader and rounded posteriorly. Legs yellowish; the posterior tibiae slightly curved ; apex of tarsi slightly infuscated. Hab. James Island (C. Darwin). HETEROME RA. STOMION GALAPAGOENSIS, G. R. Waterh. Three examples were brought by Commander Cookson. |