Lathrobium japonicum BERNHAUER, 1907

Assing, Volker, 2015, New species and additional records of Lathrobium and Elytrobium from the Palaearctic region, with special reference to the fauna of East Yunnan (Coleoptera: Staphylinidae: Paederinae), Beiträge Zur Entomologie = Contributions to Entomology 65 (1), pp. 41-74 : 67

Lathrobium japonicum BERNHAUER, 1907

Material examined: Japan: Hokkaido: 1 , Kushiro Marsh, Iwahogi , 5 m, 31. VII .1991, leg. Smetana [J20] ( CNC). Russia: Sakhalin: 1 ex., Aniva district, Kamiyshoviye mountains, Bryanka river , 30 km W Aniva, 200 m, 14. VII .1993, leg. Pütz & Wrase (cSch); 1 ex., Aniva district, Zuneyiskiy mountains, 10 km N Novo Aleksandrovsk, Mt. Tshekhov , 1000 m, 13. VII .1993, leg. Pütz & Wrase (cSch); 1 ex., Aniva district, 5 km W Petropavlovskoye, tributary of Lyutoga river , 20.–21. VII .1993, leg. Pütz & Wrase (cSch); 1 ex., Korsakov district, Ismenshiroye Lake , 21.–22. VII .1993, leg. Pütz & Wrase (cSch). (The material from Sakhalin was identified and communicated by M. Schülke.).

Comment: In Japan, L. japonicum was previously known only from Rishiri-tô, an island to the west of Hokkaido. In the recent checklist of the Lathrobium species of Japan in ( ASSING 2013f), L. japonicum is categorized as macropterous. However, according to Ryvkin (e-mail, 2 December, 2014), all the specimens from Kunashir, Iturup, and Sakhalin examined by him have reduced hind wings.