Revision of the genus Antiteuchus Dallas (Heteroptera, Pentatomidae, Discocephalinae). The genus Antiteuchus Dallas, 1851 composed of 46 species is revised. The genus and the known species are redescribed based on the male external genital structure and some external characteristics of the body. The supraspecific structure is refused and Neodine Kirkaldy, 1909 is considered synonymous of Antiteuchus. The species are split among six new groups here proposed: A. amplus, A. supinatus, A. peruensis, A. tesselatus, A. marmoratus and A. mixtus. Eight new species are described: A. amapensis sp. nov., A. beckerae sp. nov., A. doesburgi sp. nov., A. exiguus sp. nov., A. ledeburi sp. nov., A. marini sp. nov., A. melanicus sp. nov. and A. similis sp. nov. Nine species and one subspecies are synonymized. Antiteuchus varians Ruckes, 1964 is considered a junior synonym of A. pallescens Stål, 1868; A. englemani Rolston, 1993 of A. amplus (Walker, 1867); A. tripterus limbativentris Ruckes, 1964 and A. minor Engleman, 1983 of A. tripterus (Fabricius, 1787); A. fuscus (Ruckes, 1959), A. piceus (Palisot de Beauvois, 1805), A. subgibbus Engleman, 1983, A. subimpunctatus Ruckes, 1964, A. unicolor (Westwood, 1837) and A. variolosus (Westwood, 1837) of A. mixtus (Fabricius, 1787). Antiteuchus tatei (Ruckes, 1958) is considered species inquirenda. Empicoris marmoreus Spinola, 1837 is considered incertae sedis and species inquirenda. The male of A. pictus, so far unknown, is described. Identification keys for the males of the species of Antiteuchus as well as for the species groups are presented.
Discocephalini; morphology of genitalia; systematics
