Key to the Chinese species of Neostatherotis based on male genitalia

1. Uncus absent; cucullus about 1/3 times length of valva, protruding ventrally at base, forming a pointed triangular prominence.................................................................................. N. breviuscula sp. nov.

- Uncus small, a short hook; cucullus more than 2/5 times length of valva, with basal part blunt ventrally................ 2

2. Valva with neck narrow, about half the width of the cucullus; sacculus with a triangular ventral prominence distally........................................................................................... N. angustata sp. nov.

- Valva with neck more than 4/5 times width of cucullus; sacculus without ventral prominence........................ 3

3. Sacculus with spined area occupying less than 1/3 of the basal part of the valva; neck naked; cucullus about half the length of the valva............................................................................ N. sparsula sp. nov.

- Sacculus with spined area occupying more than 1/2 of basal part of valva; neck spined sparsely; cucullus less than half length of valva............................................................................... N. psilata sp. nov.