A taxonomic review of the Korean species of the subgenus Datomicra Mulsant & Rey of the genus Atheta Thomson, with description of a new species (Coleoptera, Staphylinidae, Aleocharinae) Author Lee, Seung-Gyu Author Ahn, Kee-Jeong text Zootaxa 2017 4268 4 508 522 journal article 33024 10.11646/zootaxa.4268.4.3 dc91aa5e-ab23-4599-8df9-56ebda03c098 1175-5326 580926 71929131-1CB7-4FF0-8A80-E062F1C00960 Atheta ( Datomicra ) sordidula ( Erichson, 1837 ) ( Fig. 1 H) Homalota sordidula Erichson, 1837 : 335 . Atheta ( Datomicra ) sordidula : Palm, 1970 : 269 ; Benick & Lohse, 1974 : 190 ; Paśnik, 2001 : 214 ; Smetana, 2004 : 379 ; Schülke & Smetana, 2015 : 528 . Diagnosis. Length 1.4–1.8 mm . Body ( Fig. 1 H) reddish brown to dark brown; elytra and legs paler than other parts. Head . Subquadrate, about 1.1 times as wide as long, widest at middle, slightly narrower than pronotum; eyes moderately large and slightly prominent, about 1.1–1.2 times as long as temples; gular sutures moderately separated, diverged basally; infraorbital carina complete. Antennae slightly longer than head and pronotum combined; antennomeres 1–3 elongate, 1 about as long as 11, 4–10 subquadrate to slightly transverse, 11 longest, slightly longer than preceding two combined. Thorax . Pronotum approximately 1.3 times as wide as long, widest in apical third; hypomera fully visible in lateral aspect. Elytra slightly transverse, slightly wider than pronotum; elytron approximately 1.6 times as long as wide; postero-lateral margin almost straight. Abdomen . Subparallelsided, widest at middle; surface glossy and densely pubescent, with coarse punctures; male tergite VIII with four macrosetae on each side of midline, posterior margin triangularly emarginate; posterior margin of male sternite VIII convex, slightly rounded; posterior margin of female tergite VIII slightly emarginate; posterior margin of female sternite VIII slightly emarginate in median region. Aedeagus . Median lobe elongate, widest in basal fourth, apical process parallel-sided and blunt at apex in ventral aspect. Spermatheca . Securiform; duct short. Type material. Syntype , 1♂ , labeled as follows: ‘5474, sordidula Er. Bereol Schupp’ ; 1 ex., His.-Coll. ( Coleoptera ) Nr. 5474, Homalota sordidula Er. Berolin., Schuppel Zool. Mus . Berlin . Material examined. NORTH KOREA: 2 exx., Korea Jongak-san Phjongjang-si , lg. Pawlowski , 8. 1971 [ North Korea , Pyeongannam Prov. , Pyeongyang-si , Mt. Yongaksan , viii 1971 , J. Pawlowski ]; 3 exx. , Korea 16- 18.6.74 Kymgang-san Mts. Exp. Inst.Zool. Cr . [ North Korea , Gangwon Prov., Mt. Geumgangsan , 16–18 vi 1974 , ISEA ]; 2 exx. , Korea 1981 Kymgangsan A. Szeptycki [ North Korea , Gangwon Prov., Mt. Geumgangsan , 1981, A. Szeptycki ]. Distribution. Korea (North), China ( Xinjiang ), Kazhkstan, Russia (Central European Territory, East Siberia, North European Territory, South European Territory, West Siberia), Turkey , Europe and Oriental region. Remarks . This species was recorded by Paśnik (2001) in North Korea and no specimen has been collected in South Korea.