Insecta - Coleoptera - Curculionidae
Parent taxon: Brachyderinae according to V. V. Zherikhin 1971
See also Bouchard et al. 2011, Legalov 2015, Poinar and Legalov 2017, Voss 1953 and Yunakov and Kirejtshuk 2011
Sister taxa: Anypotactini, Argoptochus incertus, Bagous atavus, Brachycerus exilis, Brachyderini, Cneorhinini, Cylydrorhinini, Cyphicerini, Entimini, Eudiagogini, Eustylini, Geonemini, Hormorini, Hyperini, Laccopygus, Laccopygus rhenanus, Lachnopus robustus, Laparocerini, Megarhynchaenus, Naupactini, Naupactus crassirostris, Oligocryptus, Ophryastini, Otiorhynchini, Otiorhynchus boettingensis, Phyllobiini, Phytonomus firmus, Polydrusini, Pristorhynchini, Scelianoma, Sciaphilini, Sciaphilus nigriscens, Sitona atavina, Sitona attavina, Sitona exitiorum, Sitones venustulus, Sitonini, Strophosomus marcelini, Syntomostylus fortis, Tanymecini, Trachyphloeini, Tropiphorini, Tychius manderstjernai, Strophosomini
Subtaxa: Polydrosus
Type: Polydrusus
Ecology:
Distribution: found only at Baltic Amber, Yantarnyi village (PIN collection 964) (Eocene of Russian Federation)