Anders N. Nilsson, Jiři Hájek (updated and modified). 2019.
Catalogue of Palearctic Dytiscidae (Coleoptera).
Update as a PDF file via Internet; version 2019-01-01.
Available from: http://www.waterbeetles.eu
Catalogue created by Anders N. Nilsson. Published as a chapter in the Catalogue of Palaearctic Coleoptera: Nilsson A.N. 2003: Family Dytiscidae Leach, 1815, pp. 35-78. In: Lobl I. & Smetana A. (eds.): Catalogue of Palaearctic Coleoptera. Volume 1. Archostemata - Myxophaga - Adephaga. Stenstrup: Apollo Books, 819 pp. and Hájek J. 2017: Family Dytiscidae Leach, 1815, pp. 844-914. In: Lobl I. & Lobl D. (eds.): Catalogue of Palaearctic Coleoptera. Volume 1. Revised and updated edition. Archostemata - Myxophaga - Adephaga. Leiden/Boston: Brill, XXXIV + 1443 pp. Updated and modified by Jiri Hájek.