Key to males of the Neotropical genera of Phlugidini

1. Tegmen absent or reduced; when reduced the apex does not exceed the third abdominal tergite........................ 2

- Tegmen long, with its apex exceeding the third abdominal tergite............................................... 4

2. Mandibles very asymmetrical (Fig. 1A). Pronotum with posterior portion expanded and projected upwards (Fig. 1C)..................................................................... Anisophlugis Chamorro-Rengifo & Oliver, 2017

- Mandibles almost symmetrical or slightly asymmetrical (Fig. 1B). Pronotum with posterior portion not expanded (Fig. 1D)...................................................................................................... 3

3. Cerci elongate, almost twice the length of tergite X in dorsal view (Fig. 1I). Cerci thin and with acuminate apex (Fig. 1I)...................................................................................... Phlugiola Karny, 1907

- Cerci short, almost as long as the length of tergite X in dorsal view (Fig. 1J). Cerci broadened and with apex expanded (Fig. 1J)..................................................................... Paraphlugiola Cadena-Castañeda, 2014

4. Subgenital plate and style ending before apex of cerci (Fig. 1H and 1K).......................................... 5

- Subgenital plate and style exceeding apex of cerci (Figs. 1E–G 1I)............................................. 6

5. Cerci sinuous in dorsal view, with one inner curved black spine at base of distal third and apically with serrated inner margin (Fig. 1K)....................................................................... .. Tyrannoraptor gen. nov.

- Cerci lightly curved in dorsal view, with a triangular dorsal spine at the middle of the length, and without projections at apex (Fig. 1H)...................................................................... Neophlugis Gorochov, 2012

6. Subgenital plate enlarged in lateral view (Fig. 1L); styli in lateral view enlarged and flattened laterally (Fig. 1L)................................................................................................ Phlugis Stål, 1861

- Subgenital plate narrow in lateral view; styli in lateral view thin and flattened dorso-ventrally (Fig. 1E–F)............... 7

7. Cerci curved, acuminate and without projections (Fig. 1E)........................... Cephalophlugis Gorochov, 1998

- Cerci straight, blunt and with projections (Fig. 1F and 1G)..................................................... 8

8. Head in frontal view broadened and rounded (Fig. 1A). Males with asymmetrical mandibles, the left one about three times longer than the right (Fig. 1A)............................................................. Arboraptor gen. nov.

- Head in frontal view narrow and straight (Fig. 1B). Males with symmetrical mandibles (Fig. 1B).. Odontophlugis Gorochov, 1998