Key to known species of Neobelocera

1. Frons with pale transverse stripe below level of lower margin of eyes (Figs 3, 18; Ding et al. 1986: Fig. 6: 2; Ding 2006: Fig. 98: B) .......................................................................................................................................................... 2

- Frons without pale transverse stripe (Fig. 10; Zhu 1988: Fig. 2; Ding 2006: Fig. 99: B, Fig. 100: B; Qin & Yuan 1998: Fig. 1: B) ............................................................................................................................................................. 3

2(1) Frons without dark transverse stripes, genae without light brown spots (Fig. 3); pygofer with medioventral processes, median one short and tapering, lateral ones slender, long (Figs 4, 5); aedeagus as thick as process of phallobase, aedeagus with node and 4 long processes at apex (Fig. 7); genital styles without process, tapering apically (Fig. 8) .......................................................................................................................................... N. lanpingensis Chen

- Frons with some short, dark transverse stripes along inner margin of lateral carina, genae with 2–3 light brown spots (Ding et al. 1986: Fig. 6: 2; Ding 2006: Fig. 98: B); pygofer without medioventral process (Ding et al. 1986: Fig. 6: 3, 7; Ding 2006: Fig. 98: C, G); aedeagus markedly thicker than process of phallobase, apex of aedeagus rounded, without process (Ding et al. 1986: Fig. 6: 4; Ding 2006: Fig. 98: D); genital styles stick-shape, apical part rounded, with a nipple-like process at subapical 1/3 (Ding et al. 1986: Fig. 6: 5; Ding 2006: Fig. 98: E) .................................. ......................................................................................................................................... N. asymmetrica Ding & Yang

3(1) Ventral margin of pygofer without any process (Qin & Yuan 1998: Fig. 1: D; Ding 2006: Fig. 100: C, G).............. 4

- Ventral margin of pygofer with 2 lateral processes (Figs 12, 23, 24) .......................................................................... 5

4(3) Frons longer at midline than wide at widest part, ratio about 1.8:1; aedeagus slender, long, compressed, not forked at apex (Qin & Yuan 1998: Fig. 1: C, E); genital styles broad, with branch-like processes near apex (Qin & Yuan 1998: Fig. 1: C, F, G) ................................................................................................................. N. hanyinensis Qing & Yuan

- Frons longer at midline than wide at widest part, ratio about 1.6:1; aedeagus compressed, forked at apex (Ding 2006: Fig. 100: E); genital styles slender, without branch-like processes (Ding 2006: Fig. 100: I) .... N. zhejiangensis (Zhu)

5(3) Ventral margin of anal segment without process (Fig. 12); pygofer with 2 slender, long, lateral processes (Fig.12); process of phallobase absent (Fig. 14); genital styles with a long process subapically (Figs 15, 16) ........................... ........................................................................................................................................ N. laterospina Chen & Liang

- Ventral margin of anal segment with a short, stout process medially (Figs 20, 21, 24); pygofer with 2 small, stout, lateral processes (Figs 23, 24); processes of phallobase developed (Figs 25, 26) .................................... N. lii sp. nov.