Key to genera of Hylicinae of the Indian subcontinent

(Modified from Viraktamath & Webb 1991)

1. Crown distinctly longer than combined length of pronotum and exposed mesonotum, pronotum with straight sublateral carinae (Fig. 3A, B)............................................................................... Nacolus Jacobi

- Crown about as long as or shorter than combined length of pronotum and exposed mesonotum (Figs 1A, E, 2A, 3E, 4A); pronotum without sublateral carinae (Figs 4A, C, 5A, B) (except in Hylica wherein carinae are oblique, Fig. 5E, H)....... 2

2. Crown median length shorter than distance between eyes (Figs 1E, 5C).......................................... 3

- Crown median length longer than distance between eyes...................................................... 4

3. Crown rounded in front, meta femora with distal setae 2+1+1+1 and borne on apical ridge-like extension; ocelli closer to posterior margin of eyes; anterior half of mesoscutellum not crested in profile (Fig.1F)................... Balala Distant

- Crown triangular in front (Fig. 5C); meta femora with distal setae 2+1+1 and not borne on apical ridge-like extension; ocelli closer to anterior margins of eyes; anterior half of mesoscutellum crested in profile (Fig. 5D).......... Hemisudra Schmidt

4. Pronotum tuberculate (Fig. 5E–H); pregenital abdominal segments with dentate lateral margins (Fig. 12C–E).... Hylica Stål

- Pronotum smooth, not tuberculate (Figs 1A, 2A, 3E, 4A, 6G, 7A; pregenital abdominal segments with smooth lateral margin5

5. Crown longer than median length of pronotum (Figs 1A, 2A, 3A, 4A)........................................... 6

- Crown shorter than median length of pronotum (Figs 2E, 6G, 7A)............................................... 8

6. Crown distad of ocelli with one or more pairs of tubercles (Figs 4A, 7G–J, 8A–H)), apices of forewings truncate (Figs 4A, 14M).................................................................................. Traiguma Distant

- Crown distad of ocelli without tubercles (Figs1A, B, 2A, B, 5A, B); apices of forewings rounded (Figs 13D, 14D, 14J).... 7

7. Crown with lateral margins carinate and reflexed almost at right angle (Fig. 1A, B); disc of crown concave Assiringia Distant

- Crown with lateral margins not carinate and reflexed; anterior projection of head with only a dorsal and ventral carinate ridges (Figs 2A–C, 5A, B)...................................................................... Hatigoria Distant

8. Pronotum with lateral margins feebly carinate, mesoscutum with dorsomedian carina (Figs 3E, F, 7C–E)...... Sudra Distant

- Pronotum with lateral margins strongly carinate and mesoscutum without dorsomedian carina (Figs 2E, F, 6G, H, 7A, B)........................................................................................... Kalasha Distant