Shimonaka, J., Tasaku, Y., Ôhara, M. (2024) Records of Enochrus haroldi (Sharp, 1884) and Laccobius fragilis Nakane, 1966 (Coleoptera, Hydrophilidae) from Hokkaido, Japan. Elytra, New Series, 14: 214-216.
※ロシア極東部からの記録
Gentili, E. (2003) HYDROPHILIDAE: III. Additional notes on the genus Laccobius Erichson in China and neighbouring areas (Coleoptera). Jäch, M.A., Ji, L. (eds.), pp. 411-429. Water Beetles of China, Vol III, Zoologisch-Botanische Gesellschaft in Österreich and Wiener Coleopterologenverein, Wien.