Scanning electron micrographs of aedeagal median lobes (ventral view). a B. emmerichi, lectotype b–d B. emmerichi, Maduo d with a partially extruded spermatophore e, f B. emmerichi, Gangca Dasi g B. macedonicus, Karanikoličko Jezero, Macedonia; Scale = 0.2 mm.

  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.