Key to species of Cyrta (males)

1. Male pygofer with well developed lateral cleft (see Fig. 21 in Li & Zhang 2006) ....................................... .................................................................................................................. C . longwanshensis (Li & Zhang)

- Lateral cleft of male pygofer absent or indistinct........................................................................................2

2. Male pygofer with long inner process (Fig. 9 G).........................................................................................3

- Male pygofer without inner process............................................................................................................7

3. Aedeagus with a long lateral process basally ................................................. C . flosifronta (Zhang & Wei)

- Aedeagus without lateral process................................................................................................................4

4. Frontoclypeus with a somewhat funnel-shaped yellow longitudinal patch medially; style twisted, basal part laterally curved in dorsal view (see Figs 2 and 5 in Wei & Zhang 2003).... C. incurvata (Wei & Zhang)

- Frontoclypeus and style not as above..........................................................................................................5

5. Aedeagus strongly narrowed subbasally in ventral view; valve articulated to subgenital plate (see Fig. 2 E in Zhang & Wei 2002) ...................................................................................... C. striolata (Zhang & Wei)

- Aedeagus not as above; valve fused to subgenital plate (Fig. 9 F)...............................................................6

6. Inner process of male pygofer strongly curved dorsally, apex exceeding dorsal margin of pygofer side (Fig. 9 G) ............................................................................................................................. C. coalita sp. n.

- Inner process of male pygofer weakly curved dorsally, apex not exceeding dorsal margin of pygofer side (Fig. 10 G) ..................................................................................................................... C. fujianensis sp. n.

7. Aedeagus with pair of long lateral process basally (see Fig. 4 in Li et al. 2007).......................................... ..................................................................................................................... C. longiprocessa (Li & Zhang)

- Aedeagus without basal process.................................................................................................................8.

8. Aedeagus very broad basally with several stout spines laterally on shaft (Figs 7 E, G).... C. spinosa sp. n.

- Aedeagus not as above.................................................................................................................................9

9. Aedeagus with four apical processes (see Figs 6–7 in Li & Zhang 2006) ............. C. furcata (Li & Zhang)

- Aedeagus not as above...............................................................................................................................10

10. Aedeagal shaft with dense tubercles (Figs 6 D–E).....................................................................................11

- Aedeagus not as above...............................................................................................................................12

11. Aedeagal shaft strongly tapered from base to apex in lateral view (Fig. 6 D) ...... C. tiantaishanensis sp. n.

- Aedeagal shaft weakly tapered from base to apex in lateral view (Fig. 1 C) ................. C. hirsuta Melichar

12. Aedeagal shaft double layered at midlength, apex incised in ventral view (Figs 8 C–D).............................. ................................................................................................................................. C. condupulicata sp. n.

- Aedeagus not as above...............................................................................................................................13

13. Aedeagal shaft strongly curved ventrally in lateral view with a pair of apical processes (Figs 5 A, G)........ ........................................................................................................................... C. orientalis (Schumacher)

- Aedeagus not as above...............................................................................................................................14

14. Aedeagus with lateral margin regularly serrate.........................................................................................15

- Aedeagus not as above...............................................................................................................................16

15. Connective Y-shaped; valve fused to subgenital plates (see Figs 4 D–E in Zhang & Wei 2002) ................. ............................................................................................................................. C. dentata (Zhang & Wei)

- Connective T-shaped; valve articulated to subgenital plates (see Figs 57c, e in Kuoh 1992)....................... ........................................................................................................................................ C. brunnea (Kuoh)

16. Style with basal part short and distinctly enlarged (see Fig. 5 E in Zhang & Wei 2002)............................... ................................................................................................................ C. nigrocupulifera (Zhang & Wei)

- Style normal, not as above.........................................................................................................................17

17. Forewing with dark transverse band at midlength (see Description in Dlabola 1957) .................................. ........................................................................................................................................ C. vicina (Dlabola)

- Forewing without dark transverse band.....................................................................................................18

18. Body generally blackish brown; aedeagal shaft with lateral margins nearly parallel in ventral view (see Figs 1 A, B and F in Zhang & Wei 2002)....................................................................... C. hornei (Distant)

- Body generally light brown; aedeagul shaft distinctly broadened medially in ventral view (see Fig. 58b in Kuoh 1992) ..................................................................................................................... C. testacea (Kuoh)