Revision of the genus Adelostoma (Coleoptera: Tenebrionidae). Part 2: A new subgenus and species from Oman Author Purchart, Luboš text Zootaxa 2017 4258 3 281 286 journal article 33142 10.11646/zootaxa.4258.3.5 240971f9-b053-4fd8-9612-ce7f71e9661a 1175-5326 569773 C8AB4963-75A9-49E1-883F-28740F91EC44 Key to subgenera of the genus Adelostoma Duponchel, 1827 1 Epipleural carina complete, extending from apex of elytra up to humeral angle (sensu Koch 1952 : 5, Fig. 2 ). Apical margin of buccal fissure lobes truncate............................................................................ 2 - Epipleural carina developed only apically, extending forwards from apex of elytra roughly to level of penultimate or third abdominal ventrite (sensu Koch 1952 : 5, Fig. 4 ; 23, Fig. 94). Apical margin of buccal fissure lobe subtriangulate or subdentate................................................................................................... 3 2 Prothorax with foliaceous lateral portions, with antennal sulcus on hypomeron. Antennomeres closely fitted into one another, apical margin of the tenth antennomere angulate.................................... subg. Psaryphulum Koch, 1952 - Prothorax without distinctly foliaceous lateral portions, without antennal sulcus. All antennomeres distinctly pedunculate, apical part of the tenth antennomere straight-truncate........................... subg. Adelostoma s.str. Duponchel, 1872 3 Dorsal surface covered with long erect or semi-erect setae. Antennomeres IV-IX transverse or at most subquadrate. Anterior margin of pronotum slightly or moderately emarginated; sides roughly and irregularly denticulate; dorsal surface covered with net-like sculptures. Space between coarse and deep punctures on reflected portion of elytra smaller than their diameter................................................................ subg. Zarudnionymus Semenov & Bogatchev, 1947 - Dorsal surface glabrous without any setae. Antennomeres IV-IX distinctly longer than wide. Anterior margin of pronotum deeply emarginated; sides finely and more or less regularly denticulate; dorsal surface without net-like sculptures. Space between coarse and deep punctures on reflected portion of elytra much bigger than their diameter.................................................................................................. .. Omandelostoma subgen. nov.