Orius (Trichorius), Yasunaga, 1997

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 : 1133

Subgenus Trichorius Yasunaga, 1997

Trichorius Yasunaga, 1997a: 362 (subgenus of Orius ). Type species by original designation: Orius atratus Yasunaga, 1997 ; Aukema et al. 2013: 93 (catalogue).

Diagnosis

Recognised by the combination of following characters: pronotum sparsely covered with long setae and small punctures, with long stout setae near anterolateral and posterolateral corners and a pair of similar setae behind ocelli, with wide callus; ostiolar peritreme roundly curved anteriorly, evaporatorium wide; genital segments of both sexes densely covered with long setae; paramere lacking denticule, with conspicuously long and bifurcate flagellum. A detailed description was provided by Yasunaga (1997a).

Remarks

The subgenus Trichorius Yasunaga, 1997 was proposed to accommodate a single species, O. atratus Yasunaga, 1997 . Yasunaga (1997a) stated the following characters to define Trichorius : dorsum shiny; pronotum with four corner setae (on anterolateral and posterolateral corners) and wide, flat callus; ostiolar peritreme rounded; genital segments of both sexes covered densely covered with long setae; paramere lacking denticule; flagellum conspicuously long and bifurcate. In this study, an undescribed species, sharing the above diagnostic characters, was discovered from Thailand, and is described here as a second representative of Trichorius .