Revision of the Idiocnemis bidentata species group
Eight species of the Papuan genus Idiocnemis Selys, 1878, sharing common traits in ligula structure and colour pattern, referred to here as the Idiocnemis bidentata-group, are redescribed or newly described. Taxonomy and distribution are updated and one new taxon, Idiocnemis polhemi
spec. nov., is described from South-East New Guinea.