Subgenus Heterorius Wagner, 1952 Heterorius Wagner, 1952: 27 (subgenus of Orius). Type species by original designation: Cimex minutus Linnaeus, 1758; Péricart 1967: 150 (diagnosis, key, figures); Péricart 1972: 174 (redescription, key); Elov 1976: 373 (key); Kerzhner 1988: 775 (key); Yasunaga 1993: 12 (redescription); Larivière and Wearing 1994: 18 (diagnosis); Péricart 1996: 123 (catalogue); Yasunaga 1997b: 379 (diagnosis, discussion); Yasunaga 2001: 292 (note); Ghahari et al. 2009: 51 (list); Jung et al. 2011: 65 (diagnosis); Aukema et al. 2013: 90 (catalogue); Jung et al. 2013: 424 (catalogue). Diagnosis Recognised by the combination of the following characters: head without a longer erect seta on each side of clypeus, near anteromedial margin of each eye, and between eye and ocellus; pronotum densely covered with setae and punctures, lacking long stout seta on each angle, with callus usually arched, impunctate, shiny; paramere with rounded cone, and usually with denticule, sometimes lacking. Detailed diagnostic characters were provided by Péricart (1967, 1972). Remarks The subgenus Heterorius, currently containing 11 species, is widely distributed in the Palearctic Region and in the adjoining areas of the Oriental Region (Thailand) (cf. Péricart 1996; Yasunaga 1997b; Aukema et al. 2013). The species with the widest distribution, Orius vicinus (Ribaut, 1923), also occurs in New Zealand and North America (Larivière and Wearing 1994; Lewis and Lattin 2010).

Published as part of Yamada, Kazutaka, Yasunaga, Tomohide & Artchawakom, Taksin, 2015, The flower bug genus Orius Wolff, 1811 (Hemiptera: Heteroptera: Anthocoridae: Oriini) of Thailand, pp. 1103-1157 in Journal of Natural History 50 on page 1151, DOI: 10.1080/00222933.2015.1104393, http://zenodo.org/record/3990373