gastriini

Gastriini is a tribe of true weevils in the family Curculionidae. The taxonomic status and composition of Gastriini have changed over time as classifications have been revised and molecular data have been incorporated; it is sometimes treated as a major grouping within a subfamily of Curculionidae, but exact placement varies among sources. The tribe includes multiple genera and species that share certain morphological features of the rostrum (snout), antennae, and body outline, which distinguish them from other weevil groups.

Gastriini species occur in many parts of the world, with the greatest diversity in tropical and subtropical regions. Adults typically feed on plant material, including leaves or seeds, and many species are associated with particular host plants. Larvae usually develop in plant tissues such as stems, roots, seeds, or fruits, depending on the genus. Some Gastriini species are considered agricultural pests, while others have little economic impact and are primarily of interest to systematists and ecologists.

Taxonomic revisions continue as new data become available, and the circumscription of Gastriini may change with future studies. The tribe is of interest for understanding weevil diversity, adaptation, and plant–insect interactions.