Key to females of Necroscia Audinet-Serville, 1838 from China

1. Pronotum with spines........................................................................... N. notata

- Pronotum lacking spines, only granulated or smooth......................................................... 2.

2. Anal region of alae with mottled spots.......................................................... N. hainanensis

- Anal region of alae lacking mottled spots, uniformly coloured................................................. 3.

3. Body yellowish...................................................................................... 4.

- Body greenish....................................................................................... 5.

4. Head with ocelli............................................................................ N. flavescens

- Head lacking ocelli.......................................................................... N. multicolor

5. Mesonotum with yellow spots................................................................... N. robustior

- Mesonotum lacking yellow spots........................................................................ 6.

6. Legs with blackish markings............................................................... N. dianica sp. nov.

- Legs uniformly coloured......................................................................... N. inflata