﻿AbstractA new flat bug species,Nesoproxiuskishimotoisp. nov., from the Oceanian region (Ogasawara Islands, Japan) is described. It is the first brachypterous representative in the genusNesoproxius. The sexual dimorphism, nymph, and habitat are also described for the first time in this genus. A key to the species ofNesoproxiusis also provided.