Revision of Korean species of the genus Batriscenellus Jeannel (Staphylinidae, Pselaphinae, Batrisitae) with description of one new species Author Kang, Jun-Young S 1 - 5 302, Department of Biology, Chungbuk National University, 1 Chungdae-ro, Seowon-gu, Cheongju-si, Chungbuk-do 28644, South Korea Author Park, Sun-Jae Animal Resources Division, National Institute of Biological Resources, Incheon 22689, South Korea Author Kim, A-Young Animal Resources Division, National Institute of Biological Resources, Incheon 22689, South Korea Author Park, Jong-Seok https://orcid.org/0000-0003-2063-2534 S 1 - 5 302, Department of Biology, Chungbuk National University, 1 Chungdae-ro, Seowon-gu, Cheongju-si, Chungbuk-do 28644, South Korea jpark16@cbnu.ac.kr text ZooKeys 2021 2021-04-22 1033 159 171 http://dx.doi.org/10.3897/zookeys.1033.59558 journal article http://dx.doi.org/10.3897/zookeys.1033.59558 1313-2970-1033-159 90991A804FFD4ECEBC63279D33722C17 D80F78C31CE1506D9E50909F79EF21BB Batriscenellus vicarius Loebl , 1973 Figs 3 , 4 Batriscenellus japonicus vicarius Loebl , 1973: 322. Nomura 1991 : 301. Batriscenellus vicarius : Nomura 1992: 61. Cho and Ahn 2001 : 53. Park et al. 2013 : 123. Loebl and Besuchet 2004 : 276. Schuelke and Smetana 2015 : 367. Material examined. 1♂ (CBNUIC), Chungbuk Prov. , Cheongwon-gun , Bugi-myeon , Hwasang-ri , 38 m , 36°44'08.00"N , 127°29'01.40"E , 12 III 2020 , M-S Jang , T-Y Jang , sifting soil litter ; 1♂ 1♀ ( 1♂ aedeagus dissected and mounted in Euparal on clear plastic card, CBNUIC), Gyeonggi Prov. , Baekdun-ri , Mt. 15-35, Buk-myeon , Gapyeong-gun , 509 m , 37°55'10.50"N , 127°26'21.80"E , 13 X 2019 , J-Y Kang , J-W Kim , sifting leaf & soil litter ; 1♀ (CBNUIC), Gyeonggi Prov. , Baekdunro-gil 650, Buk-myeon , Gapyeong-gun , 503 m , 37°55'09.80"N , 127°26'22.50"E , 13 X 2019 , M-H Song , U-J Byeon , sifting leaf & soil litter ; 1♀ (CBNUIC), Gyeonggi Prov. , Baekdun-ri , Buk-myeon , Gapyeong-gun , 440 m , 37°54'57.40"N , 127°26'17.20"E , 13 X 2019 , J-W Kang , M-H Song , U-J Byeon , T-Y Jang , sifting leaf & soil litter ; 1♂ (CBNUIC), Chungbuk Prov. , Danyang-gun , Danyang-eup , Yangbangsan-gil , 585 m , 36°58'14.20"N , 128°22'57.60"E , 12 III 2020 , M-S Jang , J-W Kim , sifting leaf & soil litter . Diagnosis. This species can be distinguished from the other Batriscenellus species by the following combination of characters: antennomeres 2-8 rectangular (Fig. 3B ); abdominal tergite V with pair of basolateral setiferous patches, VI with deep sulcus (Fig. 3C : arrow); abdominal ventrites IV-VII with pair of long setae at middle (Fig. 3D ), VIII with carina and pair of dense medial setiferous patches (Fig. 3D : arrow); left side of phallobase of male genitalia widely expanded in dorsal view (Fig. 4A, B : arrow); paramere of male genitalia curved to left in dorsal view (Fig. 4A, B ). Figure 3. Habitus figures of Batriscenellus vicarius A dorsal view B antennae C dorsal view of abdomen D ventral view of abdomen. Scale bars: 1 mm ( A ); 0.5 mm ( B-D ). Description. Length 1.85-2.02 mm. Body reddish-brown (Fig. 3A ). Head . All antennomeres with tubercles and long setae (Fig. 3B ). Antennomere 1 subquadrate with dense trichomes laterally 2-8 rectangular, 9 rectangular and larger than 2-8, 10 rhombic, 11 oval. Thorax . Pronotum with medial and lateral longitudinal sulci. Mesoventrite with lateral setiferous patches. Each elytron with shallow discal stria. Abdomen . Abdominal ventrites IV-VII with pair of long setae distinct located at middle, distinct in female (Fig. 3D : arrow), IV with setiferous patches at posterior margin of coxal cavity of hind leg (Fig. 3D ). Aedeagus . Left side of phallobase of male genitalia widely expanded in dorsal view (Fig. 4A, B : arrow). Paramere of male genitalia curved to left in dorsal view (Fig. 4A, B ). Figure 4. Aedeagi of Batriscenellus vicarius A, B dorsal view C, D lateral view. Scale bars: 0.1 mm. Distribution. South Korea (Fig. 9 : circle), Russia (Far East), Japan, China. Habitat. Specimens of this species were collected by sifting soil or leaf litter.