Key to species of Pristocera from Madagascar for males

1. Mandible with four distal teeth........................................................................... 2

- Mandible with five distal teeth........................................................................... 4

2. Petiole very setose in ventral view (Fig. 9D); hypopygium with inner margin not dentate (Fig. 9I); genitalia with apical lobes long, ocuppying more than apical half of aedeagus; lateral margin of aedeagus parallel (Fig. 9J–K)...... P. julieni sp. nov.

- Petiole glabrous in ventral view (Fig. 13E); hypopygium with inner margin dentate, at least partially (Figs 13J, 21F); genitalia with apical lobes short, ocuppying less than apical half of aedeagus; lateral margin of aedeagus sinouos (Fig. 13K)........ 3

3. Petiole with midlength 4.0 × midwidth; hypopygeal chamber with latero-basal margin somewhat angled (Fig. 21F); paramere shorter than basiparamere; subbifid, apical margin strongly emarginated, digitiform process absent (Fig. 21G–H).............................................................................................. P. levicolllis (Kieffer)

- Petiole with midlength 5.0 × midwidth; hypopygeal chamber with latero-basal margin smoothly curved (Fig. 13J); paramere longer than basiparamere; apical margin outcurved, digitiform process present, thin, very short (Fig. 13K–L).................................................................................................. P. mauricei sp. nov.

4. Petiole very long and tubular, midlength 6.5 × midwidth (Fig. 17E); hypopygium with apical third abruptly narrower than base (Fig. 17K); paramere without digitiform process; aedeagus subcircular (Fig. 17L–M)................... P. teetsi sp. nov.

- Petiole never so long and tubular, midlength 5.0 × midwidth at maximum; hypopygium with apex somewhat narrower than base; paramere with digitiform process; aedeagus generally subconical........................................... 5

5. Basivolsella ventral surface folded....................................................................... 6

- Basivolsella ventral surface smooth...................................................................... 7

6. Hypopygium with apex beak-like (Fig. 5K); paramere with digitiform process curved upward (Fig. 5L)... P. martyi sp. nov.

- Hypopygium with apex hook-like (Fig. 15J); paramere with digitiform process not curved upward (Fig. 15K)................................................................................................. P. makungai sp. nov.

7. Hypopygium with apex hook-like (Fig. 3K)..................................................... P. alexi sp. nov.

- Hypopygium with apex beak-like (Fig. 1K)................................................................ 8

8. Parameral apex very curved inward; digitiform process apical in dorsal view (Fig. 23 J–K); apical margin with small spine in ventral view (Fig. 23 K); dorsal margin sinuous (Fig. 23 J)............................................ P. cambouei

- Parameral apex not curved inward; digitiform process placed subapically in dorsal view; apical margin without small spine in ventral view; dorsal margin convex....................................................................... 9

9. Parameral apical margin at least somewhat concave (Fig. 1M; 19 L)............................................ 10

- Parameral apical margin convex (Fig. 11J)................................................................. 11

10. Parameral apical margin strongly concave (Fig. 1M).......................................... P. melmani sp. nov.

- Parameral apical margin somewhat concave (Fig. 19L).......................................... P. zubai sp. nov.

11. Paramere very expanded in dorsal view, about 2.0 × basiparamere width (Fig. 11I).................... P. morti sp. nov.

- Paramere moderately large expanded in dorsal view, about 1.4 × basiparamere width (Fig. 7H).......... P. gloriae sp. nov.