Key to genera of Evacanthini of the Indian subcontinent

(Modified from Wang et al. 2015; males only from couplet 8)

1 Head more than 3 times as long as dorsal distance between eyes (Fig. 4 I)............................ Vangama Distant

- Head less than 2.75 times as long as dorsal distance between eyes (Figs 4 AC)..................................... 2

2 Median carina of crown lamellate or on raised region (Figs 32 B, 32 C)........................................... 3

- Median carina of crown neither strongly raised nor lamellate (Fig. 1B)........................................... 5

3 Male pygofer with ventral process (Fig. 14A)................................................ Pythamus Melichar

- Male pygofer without ventral process (Fig. 21A)............................................................. 4

4 Crown with median carina lamellate, not on elevated region (Fig. 1N); crown medially longer than distance between eyes (Fig. 1M)................................................................................... Cunedda Distant

- Crown with median carina not lamellate but on median ridge (Figs 32B, 32C); crown medially shorter than dorsal distance between eyes (Figs 2 M, 32 A)............................................................... Mainda Distant

5 Claval veins fused medially for some distance then separated; crown 2.0–2.7 times as long medially as dorsal distance between eyes (Fig. 4 C)....................................................................... Striatanus Li & Wang

- Claval veins separate; crown shorter than 2 times the dorsal distance between eyes (Fig. 1 K)......................... 6

6 Crown declivous anteriorly, frontoclypeus massive, projecting forwards compared to level of clypellus (Figs 3 R, 4 B); carinae on crown forming a divided polygon with 5 or 6 sides anteriorly............................... Risefronta Li & Wang

- Crown not declivous anteriorly, frontoclypeus and clypellus at the same level or both forming singly smooth curve (3 L); ante- rior margin of head without such polygon.................................................................. 7

7 Disc of crown strongly concave, transverse carina indistinct on fore part of crown (Fig. 1 K); gena strongly incurved beneath eye (Fig. 4 P)................................................................ Concavocorona Wang & Zhang

- Disc of crown not strongly concave, transverse carina distinct on fore part of crown (Fig. 1 R); gena not strongly incurved beneath eye (Fig. 4 L).................................................................................. 8

8 Male pygofer with ventral process (Figs 14 A, 24 A).......................................................... 9

- Male pygofer without ventral process (34 A, 35 A)......................................................... 11

9 Male pygofer ventral process thin and long, greatly exceeding dorsal margin (Fig. 14 A).................. Apphia Distant

- Male pygofer ventral process thicker, shorter, either attaining or slightly exceeding dorsal margin (Fig. 23 A)............ 10

10 Head broadly rounded in front, crown with distinctly concave areas on either side of median carina on vertex (Figs 1 Q, R)............................................................................ Evacanthus Le Peletier & Serville

- Head conically rounded in front, crown rather convex, without lateral concavities but with series of longitudinal rugae in distal half (Figs 1 G, I)...................................................................... Carinata Li & Wang

11 Male pygofer with groups of stout setae on dorsal margin on posterior lobe (Fig. 42A)................ Taperus Li & Wang

- Male pygofer without such setae......................................................................... 12

12 Crown with central large black spot and anterior median and one lateral smaller black spots on fore margin (Figs 1 C, 6 M).......................................................................................... Bundera Distant

- Crown coloration different (Figs 2 O Q, 3 G K)............................................................. 13

13 Aedeagal shaft without apical or subapical processes (Fig. 33 E, 34 E).......................................... 14

- Aedeagal shaft with apical and subapical processes (Figs 36 D, 37 B)............................ Onukindia gen. nov.

14 Aedeagus with shaft in lateral view, of uniform width, 3x or more as long as wide near base (Fig. 40 F), dorsolateral lobe in posteroventral view wing-like (Fig. 40 G).................................................. Shortcrowna Li & Li

- Aedeagus with shaft in lateral view wide at apex, about 2x as long as wide at base (Fig. 34 H), dorsolateral lobe in posteroven- tral view not wing-like (Fig. 34 E)......................................................... Onukia Matsumura