Morphology of Acetalius grandis. A Head, in dorsal view B Same, in lateral view C Same, in ventral view D Pronotum E Prothorax, in lateral view F Prosternite G Left elytron H Meso- and metaventrite. Abbreviations: agp – apicolateral genal projections, at – antebasal tubercles, bef – basal elytral foveae, blc – basolateral carinae, fc – frontal carina, gf – gular fovea, laf – lateral antebasal foveae, lmcf – lateral mesocoxal foveae, lmsf – lateral mesoventral foveae, lpcf – lateral procoxal foveae, mbc – mediobasal carina, mc – median carina, mgs – median gular sulcus, mmsf – median mesoventral foveae, omc – ocular-mandibular carinae, pc – paranotal carinae, ss – sutural striae, vf – vertexal foveae. Scale bars: 0.2 mm.