Distribution of Berosus (s. str.) geminus: red circles – localities from references; white circles – countries with a general recorded in the Catalogue of Palearctic Hydrophiloidea (without localities), white square – locus typicus «Caucasus», red star – new record.

  Part of: Sazhnev AS (2020) New records of water scavenger beetles Berosus geminus Reiche & Saulcy, 1856 (Coleoptera: Hydrophilidae) from Russia. Acta Biologica Sibirica 6: 423-428. https://doi.org/10.3897/abs.6.e52360