Purvigallia maculata sp. nov. China (Yunnan).
1. Forewings short, truncate apically, exposing at least three abdominal tergites excluding male genital segment (Figs 5 C, 5 D). 2
- Forewings covering the abdomen completely, rounded or pointed apically (Fig. 1 A)................................. 3
2. Crown of head between eyes less than three times as wide as median length (Fig. 5 D); male pygofer strongly declivous posteriorly, without ventral process (Fig. 23 A); subgenital plates tapering to acute apex (Fig. 23 B)... Skandagallia gen. nov.
- Crown of head between eyes 3.5 times as wide as median length (Fig. 5 C); male pygofer not strongly declivous posteriorly, with ventral process (Fig. 24 A); subgenital plates obliquely truncate at apex, not tapering (Fig. 24 C)..... Sungallia gen. nov.
3. Pronotum, scutellum and basal region of forewings strongly pitted (Figs 5 B, 5 F); tenth segment enlarged (Fig. 22 A); style distally not forked (Fig. 22 B)............................................................ Sinoagallia gen. nov.
- Pronotum, scutellum and basal region of forewings granulose (Figs 2 B, 3 A) or rugose (Figs 1 A, B), never pitted; tenth segment not conspicuously enlarged (Figs 8 C); style distally forked (Figs 6 B, 10 F)................................. 4
4. Forewings with reticulate venation (Figs 9 B, F, 20 C)......................................................... 5
- Forewings without reticulate venation (Figs 17 C, 19 D)........................................................ 6
5. Aedeagal shaft cylindrical strongly curved, with one pair of long preatrial processes (Figs 20 I, 20 J).... Purvigallia gen. nov.
- Aedeagal shaft laterally compressed, not strongly curved, with processes near apex (Figs 9 C, 9 G)....................................................................................................... Dryodurgades Zachvatkin
6. Hind margin of crown sinuate behind eyes (Figs 2 A, 3 A–D).................................................... 7
- Hind margin of crown of head evenly curved behind eyes (Figs 1 A, 2 B, 2 C)...................................... 10
7. Claval veins connected by at least one cross vein (Figs 3 A, 3 C)................................ Japanagallia Ishihara
- Claval veins separate, not connected by any cross vein........................................................ 8
8. Aedeagus asymmetrical (Fig. 8 G).......................................................... Austroagallia Evans
- Aedeagus symmetrical (Fig. 11 G)......................................................................... 9
9. Aedeagal shaft slender, ending in attenuated bifid prolongation; dorsal apodeme subequal to bifid preatrial process........................................................................................... Ianagallia Viraktamath
- Aedeagal shaft stout, not apically attenuated, with or without preatrial bifid process; preatrial process when present, distinctly longer than dorsal apodeme.................................................................. Igerna Kirkaldy
10. Eyes projected laterally, posterior margin of crown upturned medially (Figs 2 B, 10 A); pronotum flat, without transverse rugae; male subgenital plate without stout or long slender setae (Fig. 10 H)................................ Durgades Distant
- Eyes not projected laterally, crown of head and pronotum not as above (Figs 1 A, 2 C, D); male subgenital plate with one row of stout setae (Figs 6 G, 19 E).............................................................................. 11
11. Vertex medially longer than next to eyes (Fig. 1 A, 1 B)....................................................... 12
- Vertex shorter medially than next to eyes (Figs 2 C, 2 D)...................................................... 13
12. Male pygofer caudoventrally acutely produced (Fig. 7 B); male style with inner arm bearing acute apex (Fig. 6 C)......................................................................................... Anaceratagallia Zachvatkin
- Male pygofer caudoventrally not acutely produced (Viraktamath 2011: Fig. 474); male style with inner arm broader at apex................................................................................... Nandigallia Viraktamath
13. Male pygofer lobe broadly rounded; subgenital plates with both macrosetae and long hair-like setae arising from ventral surface (Fig. 19 E)...................................................................... Onukigallia Ishihara
- Male pygofer lobe produced caudoventrally either broadly or conically; subgenital plates with long hair-like setae on dorsal surface or with small macrosetae....................................................... Formallia Viraktamath