Key to the species of the genus Neotetricodes

1. Vertex (Figs 1, 19) 1.7 times wider at base than long in midline; forewings (Figs 3, 19) 2.3 times longer than widest part; hind tibiae with one small lateral tooth near base and two large lateral teeth near apex, spinal formula of hind leg: 3 (N=6) 8–8–2; Ƥ (N=7) 8–8–2; anal tube subtriangular, ventrally without any process, anal style near middle, the laminas of aedeagus without any gladiate process, the dorsal lobe of aedeagus distally with a triangular process in midline, each side without any process (Figs 6, 7, 8)...................................................................... N. quadrilamina sp. nov.

- Vertex (Figs 10, 22) 2.0 times wider at base than long in midline; forewings (Figs 12, 22) 2.6 times longer than widest part; hind tibiae with two lateral teeth near apex, spinal formula of hind leg: 3 (N=1) 8–10–2; Ƥ (N=1) 8–10–2; anal tube (Fig. 15) oval, ventrally with a process in midline, anal style near apical part, the distal laminas of aedeagus with gladiate processes, the dorsal lobe of aedeagus distally with a triangular process in midline, each side with a small triangular process (Figs 16, 17, 18)............................................................................. N. kuankuoshuiensis sp. nov.