Key to the genera of Miracinae

1 Ovipositor sheath with tuft of setae apically (Fig. 2C); pair of posterior depressions of scutellum circular and distinctly separated (Fig. 2A); apical antennomeres of ♀ shortened (Fig. 1D); propodeum longitudinally or obliquely carinate and no medio-longitudinal carina or transverse carina (Figs 2A–B), if with irregular medio-longitudinal carina antero-medially then fourth flagellomere with acute spine apico-ventrally (Fig. 1D); vein 2RS of fore wing less than 2.0 × as long as vein (RS+M)b (Fig. 2F); notauli long and crenulated (Fig. 1F); vein R1 of fore wing longer than pterostigma (except in R. fereta) (Fig. 2F)................................................................... Rugosimirax Ranjith & van Achterberg gen. nov.

- Ovipositor sheath with scattered setae apically (Fig. 4A); pair of posterior depressions of scutellum elliptical and closer to each other (Fig. 3F), obsolescent or absent; apical antennomeres of ♀ elongate (Figs 3A, 4E); propodeum smooth or with medio-longitudinal and transverse carinae (Fig. 3F); fourth flagellomere without acute spine apico-ventrally (Fig. 4E); vein 2RS of fore wing 2.0–3.0 × as long as vein (RS+M)b or veins obsolescent (Fig. 4D); notauli either short (Fig. 3E) and smooth or absent; vein R1 of fore wing either absent or present and distinctly shorter than pterostigma (Fig. 4D)........................ 2

2. Propodeum smooth medially and without transverse carinae; notauli largely absent...................... Mirax Haliday

- Propodeum with a longitudinal carina medially and connected to more or less developed transverse carinae (Figs 3F, 4C); notauli short and shallow or obsolescent (Fig. 3E)............................................ Centistidea Rohwer