﻿AbstractSeirabonetiDenis, 1948,comb. nov.is examined and redescribed based on syntypes and by a newly discovered Chinese population. Lectotype and paralectotypes were designated, and the type locality of the species has been fixed to Câuda, near Nhatrang, Vietnam. The species was first described in the genusLepidocyrtinus, but based on morphological and molecular evidence it is here transferred toSeira. For the phylogenetic placement ofSeiraboneticomb. nov., its mitogenome was included in a dataset comprising 19 species ofSeirinae. Maximum Likelihood and Bayesian inferences clustered the species next toSeirasanloemensisGodeiro & Cipola, 2020 from Cambodia, forming a distinctSeiraclade from the Old World, confirming the hypothesis of the existence of a different basal lineage ofSeirinaein Southern Asia.