Key to asexual generation females of Holocynips species

1. Notaulus complete (Figs 9, 24, 44, 55).................................................................... 2

- Notaulus incomplete in anterior 1/3 (Fig. 35)......................................................... hartmani

2. Antenna with 11 flagellomeres (Fig. 21); body, antenna, legs uniformly reddish brown (Figs 17–27)................. badia

- Antenna with 12–13 flagellomeres (Figs 5, 52), body not uniformly coloured, primarily brown but with black stripes on mesoscutum along anterior parallel and parapsidal lines, mesoscutellar foveae and propodeum also entirely or partially black (Figs 1–12, 38–47, 48–58).............................................................................. 3

3. Antenna with 13 flagellomeres (Fig. 52), prominent part of ventral spine of hypopygium 8.0–10.0× as long as broad in ventral view (Figs 47, 58)..................................................................................... 4

- Antenna with 12 flagellomeres (Fig. 5), prominent part of ventral spine of hypopygium 3.5–4.0× as long as broad in ventral view (Fig. 12)......................................................................... illinoiensis, sp. nov.

4. Head in front view with dense white setae (Fig. 48), mesoscutum with dense white setae, especially beside notauli and between anterior parallel lines, anterior parallel line extending to a maximum 1/3 of mesoscutum length (Fig. 55), 2nd metasomal tergum smooth, all subsequent terga with minute punctures (Fig. 58).............................................. maxima

- Head in front view without or with only a very few white setae (Fig. 38), mesoscutum with very few setae, anterior parallel line extending to half length of mesoscutum (Fig. 44), 2nd metasomal tergum and all subsequent terga with punctures (Fig. 47)............................................................................................... humicola