“…Zethus Fabricius, 1804, is the most speciose genus of the Vespidae. It consists of 272 valid species, mainly occurring in the pantropical area with most species in the Neotropical region (230 species); the numbers are much lower for the other regions Afrotropical (15), Oriental (26), and Palaearctic (2) (Giordani Soika 1940, Bohart and Stange 1965, Gusenleitner 2011, Carpenter et al 2010, Carpenter and Madl 2011, Nugroho et al 2012, Nidup et al 2016, Nguyen and Carpenter 2016. In addition, Bohart and Stange (1965) reported one undescribed species from Australia.…”