Agalliini, Kirkaldy, 1901

C. A. Viraktamath, 2011, Revision of the Oriental and Australian Agalliini (Hemiptera: Cicadellidae: Megophthalminae) 2844, Zootaxa 2844, pp. 1-118 : 10-11

Key to genera of the Oriental and Australian Agalliini

1. Face with dorsal part striated ( Fig. 526) or rugose; pronotum either punctate ( Fig. 10) or antero-laterally strongly depressed ( Fig. 576)............................................................................................ 2

- Face with dorsal part not striated or rugose ( Fig. 8), but granulose or shagreen; pronotum not punctate or strongly depressed. .................................................................................................... 3

2. Pronotum, scutellum ( Fig. 10) and proximal half of forewings punctate ( Fig. 20); pronotum without antero-lateral depressions; claval veins fused or connected by cross vein; corium with accessory cross veins.................. Paulagallia gen. nov.

- Pronoutm scutellum ( Fig. 525) and proximal half of forewings not punctate ( Fig. 552); pronotum with anterolateral depressions; claval veins separate; corium without accessory cross veins................................. Sangeeta gen. nov.

3. Forewings with reticulate venation ( Fig. 169))........................................... Dryodurgades Zachvatkin

- Forewings without reticulate venation ( Fig. 15) (except Austroagallia robusta where the anteapical cells are subdivided)...4

4. Hind margin of vertex not curved or, if so, evenly curved behind eyes ( Figs 3, 7)................................... 5

- Hind margin of vertex sinuately curved behind eyes ( Figs 5, 289).............................................. 13

5. Hind wings either absent or reduced to small lobes; forewings either reaching tip of abdomen or exposing 4 or more abdominal terga............................................................................................... 6

- Hind wings well developed; forewings exceeding tip of abdomen...............................................8

6. Forewings reaching tip of abdomen, apically rounded or pointed................................................ 7

- Forewings truncate apically; exposing at least 5 abdominal terga ( India: Nilgiri Hills).................. Gunhilda Distant

7. Inner arm of styles long, abruptly broadened at apex with one subapical tooth ( Figs 276, 283); aedeagal shaft C-shaped with subapical gonopore ( Figs 277, 278, 285) ( India, SriLanka).................................... Hemagallia gen. nov.

- Inner arm of styles shorter, gradually widened with two lateral and one median subapical teeth ( Figs 292–293) ( India, China).............................................................................. Nandigallia gen. nov. (Part)

8. Pronotum transversely rugose............................................................................ 9

- Pronotum not rugose.................................................................................. 10

9. Styles with inner arm robust, apically expanded with two lateral and one median teeth ( Figs 492); aedeagus with gonopore apical; pygofer without caudo-ventral spine-like prolongation ( India, China)........................ Nandigallia gen. nov.

- Styles with inner arm slender, narrowed towards pointed apex, with one subapical tooth ( Figs 102, 108); pygofer with caudoventral spine-like prolongation ( Figs 100, 106)......................................... Anaceratagallia Zachvatkin

10. Forewings with claval veins connected by one or more cross veins ( Figs 207, 221) ( India, Pakistan, China). Durgades Distant

- Forewings with claval veins not connected by cross vein ( Figs 14, 15)........................................... 11

11. Clypellus narrow at base, apically broadened, broadest at apex of genae ( Figs 11, 526, 545).......................... 12

- Clypellus parallel sided ( Fig. 2) or slightly narrowed apically ( Fig. 4).................................. Agallia Curtis

12. Subgenital plates with long hair-like setae on dorsal surface ( Figs 252, 266, 267)) or with small macrosetae ( Fig. 262); pygofer produced ventrally either broadly ( Fig. 244) or conically ( Figs 239) (Taiwan) ..................... .. Formallia gen. nov.

- Subgenital plates with both macrosetae and long hair-like setae arising from ventral surface ( Fig. 498); pygofer variable but not as above ( Figs 496, 504) ( China, Japan, Taiwan)........................................... Onukigallia Ishihara

13. Forewing claval veins joined by one or more cross veins ( Fig. 19); vertex medially shorter and dorsally upturned ( China, Japan, India, Indonesia, Malaysia, Taiwan)................................................ Japanagallia Ishihara

- Forewing claval veins separate ( Figs 14, 15); vertex not greatly shortened in middle, not dorsally upturned.............. 14

14. Aedeagal shaft slender, terminating in attenuated bifid prolongation ( Fig. 396); dorsal apodeme subequal to bifid preatrial process ( Fig. 398) ( India, Thailand, China).................................................... Ianagallia gen. nov.

- Aedeagal shaft stout, not apically attenuated, without preatrial bifid process (except in Igerna wilsoni sp. nov.); preatrial process when present, distinctly longer than dorsal apodeme ( Figs 307, 365)........................................ 15

15. Base of aedeagus ventrally produced; often sunk into dorsal apodeme basally ( Fig. 296), usually symmetrical, dorsal apodeme well developed ( Figs 314, 319, 329); anal collar simple (except in Igerna violacea ) face somewhat polished, slightly curved from frons to clypellus; ocelli located in relatively shallow pits..................................... Igerna Kirkaldy

- Base of aedeagus not sunk into dorsal apodeme; asymmetrical ( Figs 131, 138,150); anal collar well developed, with hooks or distally dentate; face finely granulose, not slightly curved from frons to clypellus; ocelli located in rather deep pits.............................................................................................. Austroagallia Evans