Genus Sejanus Distant, 1910

Sejanus Distant, 1910: 20 (gen. nov.). Type species: Sejanus funereus Distant, 1910; monotypy.

14. Sejanus potanini (Reuter, 1906) (Figure plate 1)

Sthenarus potanini Reuter, 1906: 77 (sp. nov.)

Sejanus potanini: Kerzhner (1988a): 76 (comb. nov.); Josifov (1992b): 126 (report); Schuh (1995): 246 (cat.); Kerzhner & Josifov (1999): 423 (cat.); Yasunaga (2001c): 121 (diag., figs.); Vinokurov et al. (2010): 148 (cat.).

Specimens examined. CN: 3♀, Danjin-gun, Seongmun-myeon, Nanjido-ri, 18.viii.2009, R.K. Duwal and S. Jung. GG: 1♂, Paju-si, Musan-eup, Gunnae-myeon, 21.vii.2008, S. Jung; 1♀, Incheon, Gangwa-gun, Hajeom-myeon, Mangwol-ri, 1.vii.2008, R.K. Duwal and S. Jung. GN: 1♀, Goeje-si, Geoje Arboretum, 25‒27.viii.2008, R.K. Duwal and S. Jung.

Distribution. Asia: North Korea (Josifov 1992b), South Korea (CN, GG, GN), China (Southwest), Japan, Russia (Far East), (Kerzhner & Josifov 1999, Yasunaga 2001c).

Host. Alnus spp. ( Betulaceae), Salix sp. ( Salicaceae) (Kerzhner 1988b, Yasunaga 2001c).