Key to Chinese species of Suhpalacsa

1. Wings narrow, outer border and hind border almost like as a straight line. Costal area not fuscous..........2

- Wings broad, outer border and hind border deeply arc-shaped. Costal area fuscous..................................5

2. Thorax nota with a median pale stripe .................................................................................... S . formosana

- Thorax nota without a median pale stripe...................................................................................................3

3. Three rows of cells in apical area of forewings.......................................................................... S. umbrosa

- Two rows of cells in apical area of forewings.............................................................................................4

4. Thorax nota with distinct peac-like yellow marks .................................................................. S. longialata

- Thorax nota without yellow marks .............................................................................................. S. hainana

5. Wings smoky infuscate colour, apical area not fuscous ............................................................... S. fumiala

- Wings mostly hyaline; costal area fuscous partially or mostly in apical area.............................................5

6. Thorax nota yellow with two black stripes, apical area of wings mostly dark ................. S. fuscimarginata

- Thorax nota without distinct mark, apical area of wings near pterostigma yellow brown............................ ......................................................................................................................................... S. jianfanglingana