Map showing the localities of B. multilineatus populations in the Pyrenees (+), and of B. ibericus populations in the Picos de Europa area (◆), from which chromosome data were obtained. New data indicated by exclamation mark (!).

  Part of: Angus RB, Angus EM, Jia F, Chen Z-n, Zhang Y (2015) Further karyosystematic studies of the Boreonectes griseostriatus (De Geer) group of sibling species (Coleoptera, Dytiscidae)–characterisation of B. emmerichi (Falkenström, 1936) and additional European data. Comparative Cytogenetics 9(1): 133-144.