Geodromicus sinuatus ( Sharp, 1889 )

Shavrin, Alexey V., 2022, The plagiatus species group of the genus Geodromicus Redtenbacher, 1857 (Insecta Coleoptera: Staphylinidae: Omaliinae), and additional data on some species from Japan, Zootaxa 5188 (5), pp. 401-429 : 423

Geodromicus sinuatus ( Sharp, 1889)

( Figs. 45–46 , 49 )

Anthophagus sinuatus Sharp, 1889: 470

Geodromicus sinuatus : Scheerpeltz 1933: 1066; Zerche 2003: 281

Psephidonus sinuatus: Watanabe 1985: 267, 1986: 543 , 1990: 282

<?!> Psephidonus sinuatus: Li 1992:49 ; Li et al. 2015: 51

Geodromicus watanabei Hayashi, 2018: 203 syn. n.

Type material studied: JAPAN: HOKKAIDO PREFECTURE: Lectotype [here designated] ♀: ‘Japan. [underlined by yellow] | G. Lewis.’ <printed>, ‘Sapporo. | 5.VIII.-16.VIII.[18]80.’ <printed>, ‘ Anthophagus | sinuatus | D.S.’ <handwritten>, ‘SYN- | TYPE’ <round label with blue margin, printed>, ‘ LECTOTYPE ♀ | Anthophagus | sinuatus ( Sharp, 1889) |Shavrin A.V.des. 2014’ <red, printed>, ‘ Geodromicus | sinuatus ( Sharp, 1889) | Shavrin A.V.det. 2014’ <printed> ( BMNH). Paralectotype ♀: same labels as the previous except ‘ Geodromicus | sinuatus Sh. [handwritten] | det.C.Koch’ <printed> ( BMNH). Paralectotypes: 1 ♀: same labels as the lectotype except ‘ SYNTYPE | Anthophagus | sinuatus Sharp [handwritten] | det. R.G. Booth 2015’ <printed> ( BMNH); 2 ♀♀: ‘ Anthophagus | sinuatus Types | Sapporo D.S.’ <handwritten>, ‘Type’ <round label with red margin, printed>, ‘Japan. [underlined by yellow] | G. Lewis.’ <printed>, ‘Sharp Coll. | 1905-313.’ <printed>, ‘SYN- | TYPE’ <round label with blue margin, printed> ( BMNH); 1 ex., unsexed [partly destroyed by dermestids: without dorsal surface of head, pronotum and abdomen, left middle leg and right hind tarsus]: ‘Japan. [underlined by yellow] | G. Lewis.’ <printed>, ‘Sharp Coll. | 1905- 313.’ <printed>, ‘ sinuatus | co- type’ <handwritten>, ‘ Geodrom [icus]. (Anthoph [agus].) | sinuatus Shp. | Cotypus’ <pink, handwritten>, ‘Chicago NHMus | M.Bernhauer | Collection’ <printed>, ‘ SYNTYPE | teste D.J.Clarke2014 | GDI Imaging Project’ <pink, printed>, ‘PHOTOGRAPHED | Kelsey Keaton 2014 | Emu Catalog’ <blue, printed>, ‘FMNHINS | 2819542 | FIELD MUSEUM’ <rectangular label, with 2D barcode, printed>. All paralectotypes with my additional label: ‘ Geodromicus | sinuatus Sharp, 1889 | Shavrin A.V. det. 2015’ <printed> ( FMNH).

Additional material examined. JAPAN: GUNMA PREFECTURE: 41 exs.: ‘JAPAN: Honshu B.M. 1980 - 492 P. M. Hammond’, ‘ Gumma Pref. Mt. Hotaka (foot) ca 1300m. 14-15.viii.[19]80’ ( BMNH) ; NAGANO PREFECTURE: 4 ♂♂, 6 ♀♀: Kamikochi, 5000 ft., Northern Alps. 27.07.1939. E. Suenson leg. ( ZMUC, cSh) ; 1 ♀: ‘ Kamikochi Japan’ ( NMPC) .

Distribution. The species is known from several localities in Honshu and one locality in Hokkaido, Japan ( Fig. 49 ).

Remarks. Anthophagus sinuatus was originally described based on six specimens from Sapporo, Hokkaido. The female in better condition is designated as the lectotype in order to fix the identity of the name. Geodromicus watanabei Hayashi, 2018 was recently described from Ishikawa and Nagano prefectures ( Hayashi 2018). Based on the morphological features provided in the original description and the shape of the aedeagus ( Hayashi 2018: fig. 4) it is conspecific with G. sinuatus , hence the synonymy proposed above. The record of G. sinuatus by Li (1992) from Jilin, China (“[…] Changbai Mountain […]” [translation from Chinese by L. Tang]) seems doubtful and requires confirmation. Aedeagus as in Figs. 45–46 .

Figures

FIGURES 41–48. Aedeagus of Japanese species of Geodromicus (Figs. 41, 43, 45, 47: parameral view, Figs. 42, 44, 46, 48: lateral view): 41–42–G. aokii (Mt. Daisetsuzan), 43–44–G. sprius (holotype), 45–46–G. sinuatus (Kamikochi), 47–48–G. suensoni (Simasima). Scale bars: 0.1 mm.

FIGURES 49–50. Distribution of Geodromicus sinuatus (Fig. 49) and G. suensoni (Fig. 50) in Japan. Black circles: specimens studied by author; white circles: previously published records, specimens not seen by author.