Ábrahám Levente (szerk.): Válogatott tanulmányok XIX. - Natura Somogyiensis 35. / Miscellanea 19. (Kaposvár, 2020)
Háva, J. - Zahdradnik, P.: Two new species of Ptinidae (Coleoptera) from Eocene Baltic amber
6 Natura Somogyiensis Results Subfamily Ernobiinae Ernobius arturi sp. nov. Type material. Holotype (unsexed): Amber inclusion No. 5652, Poland, Gdansk city area, (JHAC). The complete beetle is included in a transparent amber piece, with dimensions of 13*8*4 mm. Syninclusions consist of numerous minute organic particles. Description of holotype: Body oval, shine (Fig. 1), transversally and longitudinally convex, body length 1.4 mm, the greatest width 0.6 mm (in amber situation). Pronotum, head, elytra, abdomen and legs black, antennae very dark brownish-black. Head hypognathous, almost flattened, finely punctuated, punctures almost touched. Eyes large, rounded, slightly convex, glabrous. Antennae with 11- antennomeres, antennal club with 3- antennomeres (Fig. 2), with long setae. Palpi short, dark brownishblack. Pronotum (Fig. 3) transverse, coarsely punctuated, shiny. The greatest width very shortly before base. Posterior angles obtusely rounded (in dorsal view); anterior part of pronotum slightly raised. Elytra shortly oval, shining, with distinct shoulders, with very short setation. Each elytron with striae consisting of very small poorly defined punctures discally, defined near apex of elytron, and with two lateral striae consisting of large punctures, reaching to elytral apex. Prostemum and metastemum with large individual punctures laterally. Legs robust and short, black, tarsi brownish-black. All ventrites of the same length, with small punctures medially. Differential diagnosis'. The new fossil species differs from other known amber species by the structure of antennae and elytral puctuation; it is very similar to Ernobius barticus Alekseev, 2014 but differs from it by the black body colour and structure of antennae. Etymology: Patronymic, dedicated to amber specialist Artur Michalski (Wroclaw, Poland). Subfamily Ernobiinae Xestobium michalskii sp. nov. Type material'. Holotype (unsexed): Amber inclusion No. 5390, Poland, Gdansk city area, (JHAC). Complete beetle is included in transparent amber piece, with dimensions of 39x15*5 mm. Syninclusions consist of two specimens of Nematocera (Diptera), and numerous small to minute organic particles. Description of holotype: Body shortly elongate, matt, transversally and longitudinally convex, body length 2.0 mm (in amber situation), width not measured. Pronotum, head, elytra and abdomen black, antennae and legs brown (Fig. 4-5). Head hypognathous, almost flattened, finely punctuated. Eyes large, rounded, slightly convex, glabrous. Antennae with 11- antennomeres, antennal club with 3- antennomeres (Fig. 6). Palpi very short and broad, brown.
