Key to Lophotettiginae genera and species

1. Antennae with 11 segments moderately or noticeably expanded, at least from the fifth or sixth antennal segment to the apex. Mid-line of pronotum usually elevated as a crest, at least one-third of its length. Pronotum and legs with conspicuous granules. Middle femora carinated; hind femora robust, carinated and/or with lappets. Robust appearance (Fig. 1)..... Lophotettix .... 2

‒ Antennae with more than 11 segments, mostly not expanded, and if so, only moderately in the last three or two segments (Figs. 2C, 5B). Mid-line of pronotum generally not elevated, if so, only moderately hump-shaped at meso and metathorax level (Figs. 2, 3B, 4). Pronotum and legs generally smooth, without conspicuous granulations. Middle femora slightly carinated; hind femora robust, carinated and without lappets. Slender appearance (Figs. 2, 4)....... Phelene stat resurr. ...................6

2. Shape of pronotum crest rounded in lateral view (Fig. 1A, B)................................................... 3

‒ Shape of pronotum crest almost subquadrate in lateral view (Figs. 1C ‒ E)......................................... 4

3. Crest directed forwards (Fig. 1A)............................................................. L. brevicristatus

‒ Crest directed backward (Fig. 1B)................................................................ L. zumbadoi

4. Anterior margin of pronotum over the head not hook-like..................................................... 5

‒ Anterior margin of pronotum over the head arcuated, with projection hook-like (Fig. 1C).................. L. unicristatus

5. Anterior margin of pronotum over the head straight (Fig. 1D)........................................ L. alticristatus

‒ Anterior margin of pronotum over the head slightly concave (Fig. 1E).................................... L. hancocki

6. Predominantly coloration brown, mid-line of pronotum raised in the shape of a dromedary hump at the level of the meso and metathorax (Figs. 2, 3)................................................................... P. turgida stat. rev.

‒ Predominantly coloration black, mid-line of pronotum not elevated (Figs. 4, 5)........................ P. maroon n. sp.