Key to Poliaspoides living on bamboos ( Poaceae) based on adult females

1 Perivulvar disc-pores absent; with 3 large submarginal dorsal macroducts on each side of pygidium..... P. bambusae n. sp.

- Perivulvar disc-pores present in 5-7 groups; without large submarginal dorsal macroducts on each side of pygidium....... 2

2 With spiracular pores present near posterior spiracle................................................... P. simplex

- Without spiracular pores near posterior spiracle.................................................... P. formosana