Key to the Neotropical species-groups of Atractodes

1. Propodeum with a short dorsal face and a flat posterior face abruptly sloped downwards (Fig. 2 A). Posterior part of area basalis strongly elevated, almost reaching the level of postscutellum in lateral view (Fig. 2 A). Apex of scutellum with vertical wrinkles (Figs 6 C–F). Median area of propodeum strongly strigose transversally (Figs 6 C–F). Junction of posterior transverse carina and lateral longitudinal carina forming an angulate crest (Fig. 2 A). Central flagellomeres of female usually thicker than the distal ones (Figs 4 B–C)..................................... Atractodes propodeator species-group (this article).

-. Propodeum more or less convex and uniformly sloped downwards posteriorly (Figs 2 B–D). Area basalis not conspicuously raised posteriorly, sometimes absent. Median area of propodeum smooth or sculptured, exceptionally transversally strongly strigose. Apex of scutellum smooth or punctate. Junction of posterior transverse carina and lateral longitudinal carina not forming an angulate crest (Figs 2 B–D). Flagellum usually thicker distally than in central part.......................... 2