Reassessment of characters of the ‘Orientomiris-group’, with descriptions of three new genera and eight new species of the tribe Mirini from the Oriental Region (Hemiptera: Heteroptera: Miridae)

Possession of stridulatory devices (serrated forewing edge and metafemoral plectra) is suggested as a useful taxonomic character for classification of the complex group comprising Creontiades Distant, 1883, Megacoelum Fieber, 1858, Orientomiris Yasunaga, 1997 and an additional superficially similar taxon which is provisionally called the Orientomiris-group. Three new genera, Muttiocapsus gen. nov., Nythomiris gen. nov. and Sakaeratiella gen. nov., are proposed to accommodate two unique undescribed species from the Oriental Region and a known taxon, Adelphocorisella adelphocoroides Yasunaga, Shishido & Yamada, 2016 from Thailand, respectively. Accordingly, a new combination, Sakaeratiella adelphocoroides comb. nov., is established. Four new species of Orientomiris Yasunaga, 1997 from Peninsular Malaysia, Taiwan and Thailand are also described.