-Animals (Kingdom Animalia)

-Arthropods (Phylum Arthropoda)

-Hexapods (Subphylum Hexapoda)

-Insects (Class Insecta)

-Winged and Once-winged Insects (Subclass Pterygota)

-Beetles (Order Coleoptera​​)

-​Water, Rove, Scarab, Long-horned, Leaf, and Snout Beetles (Suborder Polyphaga)

-​Cucujiform Beetles (Infraorder Cucujiformia)

-Snout and Bark Beetles (Superfamily Curculionoidea)

-​True Weevils (Family Curculionidae)e)

-Subfamily Curculioninae

-Genus Piazorhinus

Weevils of the genus Piazorhinus are a group of true weevils (family Curculionidae). Like other true weevils, adult Piazorhinus possess a distinct, elongated snout (rostrum) and elbowed, club-tipped antennae.