Austroterobia

1 Notauli visible only in anterior third of mesoscutum (Figs 7, 23); gena conspicuously depressed at mouth corner (Figs 5, 26).....................................................................................................2

- Notauli visible throughout length of mesoscutum (Figs 17, 36, 48, 57, 68); gena sometimes not depressed at mouth corner (Figs 34, 46).........................................................................................4

2(1) Toruli closer to ventral margin of clypeus than to median ocellus (Fig. 22); marginal vein about 4× as long as broad (Fig. 28); basal two teeth of right mandible very short and close to each other (Fig. 25); head and mesosoma with conspicuous metallic reflections (Fig. 21); Afrotropical.......................................................... A. heydoni sp. nov.

- Toruli closer to median ocellus than to ventral margin of clypeus (Fig. 5); marginal vein more than 8× as long as broad (Fig. 10); basal two teeth of right mandible larger and wider apart (cf. Fig. 13); at most head with faint metallic reflections (Fig. 1); Oriental.............................................................................................3

3(2) POL about 1.3× OOL; inner margins of eyes not sinuate; malar sulcus slightly indicated; scape not reaching median ocellus; legs pale yellow...................................................................... A. maldica Narendran

- POL about 0.7× OOL; inner margins of eyes very slightly sinuate (Fig. 3); malar sulcus absent (Fig. 5); scape reaching slightly above lower margin of median ocellus (Fig. 3); legs yellowish-brown (Fig. 1)................... A. achterbergi sp. nov.

4(1) Prepectus and dorsal side of propodeum entirely setose (Figs 37, 38); posterior margin of mesoscutellum densely setose, with small spine (Fig. 36); anterior margin of propodeum distinctly raised, concealing dorsellum; propodeal plicae absent (Fig. 38); axillae virtually touching medially (Fig. 36); pronotum visible in dorsal view (Fig. 36); mandibular formula 3:3; Afrotropical...................................................................................... A. iceryae Bouček

- Prepectus and dorsal side of propodeum bare (Figs 18, 19, 27, 49, 50, 58, 59, 69, 70); posterior margin of mesoscutellum not densely setose, without distinct spine, although sometimes acutely pointed (Figs 17, 48, 57, 68); anterior margin of propodeum not distinctly raised, not concealing dorsellum; propodeal plicae present (Figs 19, 50, 59, 70); axillae wider apart (Figs 17, 23, 48, 57, 68); pronotum not or barely visible in dorsal view (Figs 17, 23, 48, 57, 68); mandibular formula usually 3:2 (Figs 13, 54); sometimes other distribution.........................................................................5

5(4) Mandibular formula 3:3; propodeum with plicae diverging posteriorly (Fig. 50); POL 0.5–0.7× OOL; head and mesosoma brown, without metallic reflections (Figs 40–42); Afrotropical..................................... A. noyesi sp. nov.

- Mandibular formula 3:2 (Figs 13, 54); propodeum with plicae converging posteriorly (Figs 19, 59, 70); POL 0.7–1.0× OOL; at least head usually with strong metallic reflections (Figs 54–56, 64–66); Australasian or Neotropical....................6

6(5) Head brown, without metallic reflections (Figs 13–15); fore wing without speculum and parastigma with hyaline break (Fig. 20); antenna with funicular segments strongly pedicellate (Fig. 16); inner margins of eyes very slightly sinuate (Fig. 13); POL about 0.8× OOL; Neotropical............................................................... A. gatesi sp. nov.

- Head with strong metallic reflections (Figs 54–56, 64–66); fore wing without above combination of characters; antenna with funicular segments not or only slightly pedicellate (Figs 56, 66); inner margins of eyes not sinuate (Figs 54, 64); POL about equal to OOL; Australasian..............................................................................7

7(6) Mesopleuron mostly smooth, femoral depression with deep central pit (Fig. 58); lower margins of toruli much higher than lower margins of eyes (Fig. 54); fore wing wide, length 1.9–2.1× width, with small speculum (Fig. 60); parastigma with hyaline break (Fig. 60); both head and mesosoma usually with distinct metallic reflections (Figs 51–53); body size: 1.3–1.7 mm................................................................................... A. partibrunnea Girault

- Mesopleuron mostly finely reticulate, femoral depression almost indistinct, without central pit (Fig. 69); lower margin of toruli level with or only slightly above lower margins of eyes (Fig. 64); fore wing narrower, length 2.2–2.4× width, without speculum (Fig. 71); parastigma without hyaline break (Fig. 71); head always with metallic reflections, mesosoma usually orange-brown (Figs 61–63); body size: 0.8–1.4 mm..................................................... A. partiviridis sp. nov.