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2018. First record of Helophorus villosus Düftschmid, 1805 (Coleoptera: Hydrophyloidea: Helophoridae) in Ukraine. The Kharkov Entomological Society Gazette. 26, 2 (Dec. 2018), 5–7. DOI:https://doi.org/10.36016/KhESG-2018-26-2-1.