Genus Xynobius Foerster, 1863

Figs 1, 2-11

Xynobius Foerster, 1863: 235. Type species (by original designation): Xynobius pallipes Foerster, 1863 (= Opius caelatus Haliday, 1837).

Aclisis Foerster, 1863: 267. Type species (by original designation): Aclisis isomera Foerster, 1863 (= Opius caelatus Haliday, 1837). Synonymized by Fischer (1972).

Holconotus Foerster, 1863: 259 (not Schmidt-Göbel 1846). Type species (by original designation): Opius comatus Wesmael, 1835). Synonymized by van Achterberg (2004).

Aulonotus Ashmead, 1900: 368 (new name for Holconotus Foerster). Type species (by original designation): Opius comatus Wesmael, 1835). Synonymized by Tobias and Jakimavicius (1986).

Eristernaulax Viereck, 1913: 362. Type species (by original designation): Eristernaulax leucotaenia Viereck, 1913). Synonymized by van Achterberg (2004).

Stigmatopoea Fischer, 1984: 610, 611 (as subgenus of Opius Wesmael), 1998: 25 (key to species); Wharton 1988: 356; 2006: 338 (as subgenus of Eurytenes Foerster, 1863; possible paraphyly in Xynobius). Type species (by original designation): Opius macrocerus Thomson, 1895. Synonymized by van Achterberg (2004).

Xynobiotenes Fischer, 1998: 23 (as subgenus of Eurytenes Foerster, 1863). Type species (by original designation): Opius scutellatus Fischer, 1962. Synonymized by Li et al. (2013).