Orius (Dimorphella), Reuter, 1884

Yamada, Kazutaka, Yasunaga, Tomohide & Artchawakom, Taksin, 2015, The flower bug genus Orius Wolff, 1811 (Hemiptera: Heteroptera: Anthocoridae: Oriini) of Thailand, Journal of Natural History 50, pp. 1103-1157 : 1135-1136

Subgenus Dimorphella Reuter, 1884

Dimorphella Reuter, 1884: 646 (subgenus of Triphleps ). Type species by monotypy: Anthocoris agilis Flor, 1860 ; Wagner 1952: 25 (subgenus of Orius , redescription); Ghauri 1972: 414 (subgenus of Orius , list); Péricart 1972: 185 (subgenus of Orius , diagnosis, key); Elov 1976: 374 (subgenus of Orius , key); Kerzhner 1988: 775 (subgenus of Orius , key); Ghahari et al. 2009: 50 (subgenus of Orius , list); Aukema et al. 2013: 90 (catalogue).

Paraorius Yasunaga and Miyamoto, 1993: 230 (subgenus of Orius ). Type species by monotypy: Anthocoris tantillus Motschulsky, 1863 ; Péricart 1996: 127 (catalogue); Yasunaga 1997c: 387 (diagnosis, discussion); Aukema et al. 2013: 92 (catalogue). Syn. nov.

Diagnosis

Recognised by the combination of following characters: head and pronotum finely and densely covered with setigerous punctures; head without a longer erect seta on each side of clypeus, near anteromedial margin of each eye, and between eye and ocellus; pronotum lacking long stout seta on each angle, with callus flattened and centrally separated by setigerous punctures; male profemora sometimes with 3 – 5 small teeth on ventral side; paramere usually with cone apically obtuse, lacking denticule. Detailed diagnostic characters were provided by Péricart (1967, 1972).

Remarks

Yasunaga and Miyamoto (1993) established the subgenus Paraorius to accommodate O. tantillus ( Motschulsky, 1863) following the opinion of Ghauri (1972) and Woodward and Postle (1986). Hernández and Stonedahl (1999) did not agree with the placement of O. tantillus in an independent subgenus because this species shares many characters with species of Dimorphella . They treated it as a member of the subgenus Dimorphella . Subsequently, Yasunaga (2001) followed the treatment of Hernández and Stonedahl (1999) without taxonomic comment. However, Paraorius is yet to be published as a synonym of Dimorphella . We also agree with the placement of O. tantillus in Dimorphella and herein suggest Paraorius is a junior synonym of Dimorphella .

Dimorphella currently comprises nine species (cf. Péricart 1996; Yasunaga 1997c; Hernández and Stonedahl 1999; Aukema et al. 2013). In Southeast Asia, only two species are known, O. maxidentex and O. tantillus ; both were also previously recorded from Thailand ( Yasunaga and Miyamoto 1993; Kernasa et al. 2008).