Microserica simplex group

Key to the species of the Microserica simplex group (♁♁):

1 Right paramere spoon-like widened at middle........................................... Mic. simplex Arrow, 1946

- Right paramere narrow................................................................................. 2

2 Left paramere narrow.................................................................................. 3

- Left paramere basally widened................................. Mic. parasimplex Ahrens, Lukic & Liu, new species

3 Right paramere with a mesolateral tooth.......................... Mic. allovarians Ahrens, Lukic & Liu, new species

- Right paramere without a mesolateral tooth....................... Mic. neosimplex Ahrens, Lukic & Liu, new species