Calomycterus

As a genus of broad-nosed weevils (Entiminae), Calomycterus species possess the characteristic short, broad rostrum typical of the subfamily. The subtribe Acanthotrachelina placement suggests association with spiny-necked weevil characteristics, though specific diagnostic features for the genus require examination of genitalia and other minute morphological details. Species-level identification relies on subtle differences in body proportions, punctation patterns, and rostral structure.

Native range includes China, India, and unspecified regions of Africa based on GBIF distribution records. The genus has been introduced to North America through Calomycterus setarius, which has established populations outside its native range.

Calomycterus setarius, the imported long-horned weevil, has been introduced to North America and is of potential economic concern as a non-native species. The remaining species appear to have limited documented interaction with human activities.

• Other Entiminae generaBroad-nosed weevils share the short, broad rostrum that distinguishes them from other Curculionidae subfamilies; Calomycterus is distinguished by subtribe-level characteristics within Cyphicerini.

• weevil
• Curculionidae
• Entiminae
• broad-nosed weevil
• introduced species

• BugGuide
• Wikipedia
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy
• Catalogue of Life