Heterachthes antonkozlovi sp. nov. is similar to H. signaticollis (Thomson, 1865), but differs by the
features presented in the key below, and by the elytral setae distinctly sparser. The general appearance of H. antonkozlovi
resembles that of Pygmodeon andreae (Germar, 1824) (See Bezark 2016), but differs by the procoxal cavities closed
behind (opened in P. andreae), and by the antennomeres III and IV in male distinctly tumid (not so in males of P.