Review of the Barcinus-complex with description of new taxa (Hemiptera: Heteroptera: Aradidae)

Abstract

This paper deals with the revision of the flat bug genus Barcinus Stål 1873 recorded from the Oriental–Papuan Region. Newly available additional material and biogeographical considerations allowed the distinction of discrete species groups, which—in addition to the type genus Barcinus—are defined and proposed as Heterobarcinus n. gen., Papuabarcinus n. gen. and Brachybarcinus n. gen. The genus Barcinus remains monotypic, with the species horridus Stål 1873. To Heterobarcinus n. gen. is assigned the species bhoutanensis (Usinger & Matsuda 1959), kormilevi (Bai, Heiss & Cai 2006), schaeferi n. sp. (China, Fujian) and minor n. sp. (China, Yunnan). The genus Papuabarcinus n. gen. contains the species ceramensis (Usinger & Matsuda 1959), laminiferus (Walker 1873), papuensis (Usinger & Matsuda 1959), productus (Usinger & Matsuda 1959), truncatus (Kormilev 1955), riedeli n. sp. and intermedius n. sp. (both from Irian Jaya). For vietnamensis n. sp. (Vietnam, Southern China), secundus n. sp. (China, Fujian, Guangxi) and baianus n. sp. (China Yunnan) the new genus Brachybarcinus n. gen. is erected. All species are illustrated and are keyed.