A revision of the endemic Madagascan genus Triplatyx (Hemiptera: Heteroptera: Pentatomidae)
The endemic Madagascan genus Triplatyx Horváth, 1904 (Pentatomoidea: Pentatomidae: Pentatominae: Triplatygini) is redescribed. Five species are recognized, two of them being new: T. bilobatus Cachan, 1952, T. dubius Jensen-Haarup, 1931, T. kerzhneri sp. nov., T. quadraticeps Horváth, 1904, and T. stysi sp. nov. All species are (re)described, including the so far unknown male and female genitalia and important characters are illustrated. The lectotype of T. quadraticeps is designated. The first known larva of the genus (T. quadraticeps) is described and first data on its bionomics are included.