Chalcid wasps (, , for their metallic colour) are insects within the superfamily Chalcidoidea, part of the order Hymenoptera. It is one of the largest insect families, with some 22,000 known species, and an estimated total diversity of more than 500,000 species, meaning the vast majority have yet to be discovered and described.

Chalcid wasps (, , for their metallic colour) are insects within the superfamily Chalcidoidea, part of the order Hymenoptera. It is one of the largest insect families, with some 22,000 known species, and an estimated total diversity of more than 500,000 species, meaning the vast majority have yet to be discovered and described.