Batriscenellus vicarius Loebl , 1973

Kang, Jun-Young, Park, Sun-Jae, Kim, A-Young & Park, Jong-Seok, 2021, Revision of Korean species of the genus Batriscenellus Jeannel (Staphylinidae, Pselaphinae, Batrisitae) with description of one new species, ZooKeys 1033, pp. 159-171 : 159

Batriscenellus vicarius Loebl, 1973 Figs 3 , 4

Batriscenellus japonicus vicarius Löbl, 1973: 322. Nomura 1991: 301.

Batriscenellus vicarius : Nomura 1992: 61. Cho and Ahn 2001: 53. Park et al. 2013: 123. Löbl and Besuchet 2004: 276. Schülke 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 ).

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 ).

Distribution.

South Korea (Fig. 9 : circle), Russia (Far East), Japan, China.

Habitat.

Specimens of this species were collected by sifting soil or leaf litter.

Figures

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).

Figure 4. Aedeagi of Batriscenellus vicarius A, B dorsal view C, D lateral view. Scale bars: 0.1 mm.

Figure 9. Collection localities of Batriscenellus koreanus sp. nov.: square; B. vicarius: circle; B. auritus: triangle; B. orientalis: diamond.