A taxonomic review of Colobopsis minus (Wang & Wu, 1994), comb. nov. from China, with description of all castes (Hymenoptera, Formicidae)

<i>Camponotus</i> and <i>Colobopsis</i> are two species-rich genera within the ant tribe Camponotini. Despite their non-sister phylogenetic relationship, pronounced morphological convergence has long complicated their taxonomic delineation. Here, we clarify the status of <i>Colobopsis minus</i> (Wang & Wu, 1994), <b>comb. nov.</b>, a taxon historically misassigned to <i>Camponotus</i>, through an integrative approach combining COI phylogenetics, caste-specific morphometrics, and pupae type. We provide the first comprehensive description of all castes (minor and major workers, gynes, and males), alongside two taxonomic keys to Chinese <i>Colobopsis</i> species. Critical evidence for reclassification includes: (1) phragmotic major workers with <i>Colobopsis</i>-specific cephalic modifications; (2) naked pupae and (3) molecular phylogenetic analyses of COI barcode sequences, which robustly place <i>C. minus</i> within the <i>Colobopsis</i> clade. This study underscores the necessity of synthesizing phylogenetic data with detailed morphological analysis to disentangle complex taxonomic histories in hyperdiverse ant groups.