The subfamily Mirinae, commonly called plant bug, represents the largest group in Heteroptera, and is also one of the most important groups economically, containing many insect pests as well as predators that can be used as biological control agent in agriculture. However, the monophyletic and phylogenetic relationships of each group within Mirinae are not understood to date, due to a lack of phylogenetic analysis. In this talk, the first comprehensive phylogenetic analyses of the subfamily Mirinae are presented, based on total-evidence data. Major questions raised based on results of this study are discussed: (i) Is each tribe in Mirinae a monophyletic?; (ii) Which tribes or genera are related or not related? (iii) Are these complexes monophyletic?; and (vi) Which characters are nonhomoplacious or homoplacious, and Which are supported in each group?