New Species of Malachite Beetles (Coleoptera, Dasytidae) in Baltic Amber

摘要

Four new species of malachite beetles (Coleoptera, Dasytidae) are described from Late Eocene Baltic amber, namely two species of the genus Aplocnemus Stephens, 1830 and a species of the genus Aploceble Majer, 1998, both from the tribe Aplocnemini Majer, 1987 of the subfamily Rhadalinae Leconte, 1862, and a species of the genus Dasytes Paykull, 1799 from the tribe Dasytini Leech, 1817 and subfamily Dasytinae Laporte de Castelnau, 1840. The new species Aplocnemus (Aplocnemus) hoffeinsorum sp. nov. is characterized by flabellate antennae and yellowish-brown legs. The new species resembles the Central Pyrenean endemic species A. (A.) temperei Constantin, 2007 in a suite of characters, but can easily be distinguished by its flabellate antennae, larger body size, coarse puncturation of the surface and elytra slightly widened posteriorly. Aplocnemus (Ischnopalpus) baltiensis sp. nov. differs in the triangular serrate middle antennomeres, wide triangular last palpomere, and surface with strong, dense puncturation, covered with long black erect hairs. Aploceble (Aploceble) lateantennata sp. nov. has dark-brown legs, which allow comparison with A. (A.) fuscipes Majer, 2008, which has light-brown legs, but the new species differs in the wide triangular middle antennomeres, which from the 4th to the 10th are wider than long, as well as in the coarse sparse puncturation of the dorsal surface. Characters to distinguish the new species from its congeners are given in the key to Aploceble species. The new species Dasytes (Mesodasytes) ochraceus sp. nov. can easily be recognized from its congeners by the yellow-brown coloration of the body with narrow black stripes on the apical antennomeres, the inner margins of the femora and the apices of the tarsomeres. In outward appearance it is similar to Dasytes (Mesodasytes) croceipes Kiesenwetter, 1866 which has the legs partly yellow-orange, but differs in the elongate 3rd antennomere, the distinct carina above the epipleura, and the lateral margins of the pronotum depressed posteriorly.