Geodromicus suensoni Bernhauer, 1936

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 : 423-425

Geodromicus suensoni Bernhauer, 1936

( Figs. 47–48 , 50 )

Geodromicus suensoni Bernhauer, 1936: 304

Psephidonus suensoni: Watanabe, 1985: 267, 1990: 293

Geodromicus takabai Hayashi, 2018: 201 syn. n.

Type material examined: JAPAN: NAGANO PREFECTURE: Holotype [Left antennomeres 4–11 glued on same card with beetle] ♀: ‘Kamikochi | North[ern]. Alps Japan | 5000 f. Suenson | 15. 9. 1934 ’ <handwritten>, ‘Kamikochi 5000 Feet | Northern Alps Japan | E. Suenson | 15 SEP. 1934 ’ <printed in blue>, ‘ sinuatus Shp. [handwritten] | det. Bernhau[er]’ <printed>, ‘Hs. schmäler | fein p[un]ktiert’ <pink, handwritten>, ‘Suensoni | Brh. Typus | unic.’ <handwritten>, ‘Suensoni | Brnh. Typ. m. | Geodromicus’ <light brown, handwritten>, ‘Chicago NHMus | M.Bernhauer | Collection’ <printed>, ‘ HOLOTYPE | teste D.J.Clarke2014 | GDI Imaging Project’ <violet, printed>, ‘PHOTOGRAPHED | Kelsey Keaton 2014 | Emu Catalog’ <blue, printed>. ‘FMNHINS | 2819543 | FIELD MUSEUM’ <rectangular label, with 2-D barcode, printed>, ‘ Geodromicus | suensoni Bernhauer, 1936 | Shavrin A.V. det. 2016’ <printed> ( FMNH). The photographs of the habitus and type labels are available in Arthropod Collections Database of FMNH (last access: 23.08.2022).

Additional material examined. JAPAN: NAGANO PREFECTURE: 1 ♂: ‘Simasima-val. Nagano-pref., Jap. July 10, 1966 Y. Watanabe leg.’ (cW) .

Distribution. The species is known from several localities in Honshu, Japan ( Fig. 50 ).

Remarks. Geodromicus suensoni was originally described from Kamikochi, central Honshu. Geodromicus takabai Hayashi, 2018 was originally described from Ishikawa Prefecture, central Honshu. Based on the morphological features provided in the original description and the shape of the aedeagus ( Hayashi 2018: fig. 3), G. takabai is conspecific with G. suensoni , with which it is synonymized here. Aedeagus as in Figs. 47–48 .

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.