Key to species of Aotearoazeus

1. Mesopleuron smooth and shining. Foveate groove deep and long, extending from anterior end to lower hind corner of mesopleuron (Fig. 54). Clypeus about twice as broad as long (Fig. 53). Basal keel and transverse carina of propodeum with short adjacent wrinkles (Fig. 55). Ovipositor very robust, short, and strongly upcurved, its sheath 0.2–0.3× as long as hind tibia (Fig. 57)............................................................................... A. probles sp. nov.

- Mesopleuron granulate, dull. Foveate groove absent or weak and short (Figs 40, 48). Clypeus wider, at least 2.4× as broad as long (Figs 39, 46). Basal keel and transverse carina of propodeum without adjacent wrinkles. Ovipositor much longer, weakly upcurved, its sheath 0.9–1.2× as long as hind tibia............................................................ 2

2. Glymma weak, situated near centre of first tergite (Fig. 40). Malar space about 0.7× as long as basal mandibular width (Fig. 38). Flagellum with 25–27 flagellomeres (Fig. 38). Hind leg dark brown with only trochanters pale (Fig. 42). Second tergite almost twice as long as anteriorly broad. Ovipositor with shallow dorsal subapical depression (Fig. 43), its sheath slightly shorter than hind tibia................................................................. A. bullivantus sp. nov.

- Glymma deep, situated in basal 0.3–0.4 of first tergite (Fig. 49). Malar space 1.0–1.2× as long as basal mandibular width (Fig. 45). Flagellum with 21–24 flagellomeres (Fig. 45). Hind leg reddish brown with only coxa darkened (Fig. 50). Second tergite 1.1–1.5× as long as anteriorly broad. Ovipositor with deep and narrow dorsal subapical notch (Fig. 51), its sheath somewhat longer than hind tibia................................................................... A. coronetus sp. nov.