Plotina

Wang, Xingmin, Ren, Shunxiang & Chen, Xiaosheng, 2011, The genus Plotina Lewis (Coleoptera: Coccinellidae), with descriptions of four new species from China, Zootaxa 2801, pp. 57-68 : 68

Key to species of Plotina

1. Elytra with eight large rounded white spots, without any black spot................. octomaculata Wang et Ren , sp. nov.

- Elytra with four large irregular white spots, with several black spots............................................. 2

2. Pronotum with two large rounded white spots............................................................... 3

- Pronotum without two large rounded white spots........................................................... 4

3. Pronotum with two black spots. Each elytron with four black spots arranged in 1–2–2 pattern............. muelleri Mader

- Pronotum without any black spot. Each elytron with two black spots........... menghaiensis Wang, Ren et Chen , sp. nov.

4. Pronotum with a large transverse black spot................................................... versicolor Lewis

- Pronotum without any black spot........................................................................ 5

5. Each elytron with four black spots arranged in 1–1–2 pattern...................... daweishanensis Wang et Ren , sp.nov.

- Each elytron with more than four black spots............................................................... 6

6. Pronotum with two dark spots. Each elytron with seven black spots..................... signatella Wang et Ren , sp. nov.

- Pronotum without dark spots. Each elytron with six black spots................................. quadrioculata Kovář