Key to the Chinese species of Nemapogon Schrank based on male genitalia

1. Phallus clearly more than twice length of valvae ....................................................................................................... 2

- Phallus less than twice length of valvae ..................................................................................................................... 5

2. Gnathos well developed, somewhat V-shaped ............................................................................................................ 3

- Gnathos reduced to small, inconspicuous sclerites (Fig. 14) ...................................................... N. bidentata sp. nov.

3. Valvae somewhat triangular distally ........................................................................................................................... 4

- Valvae somewhat quadrate or with two small sharp protuberances distally (Zagulajev 1964, Fig. 20) ........................ ..................................................................................................................................................... N. granella Linnaeus

4. Phallus with process at distal 1/3 (Fig. 12) .............................................................................. N. inconditella (Lucas)

- Phallus without process (Fig. 11) ................................................................................................... N. robusta Gaedike

5. Uncus concave at middle on caudal margin ............................................................................................................... 6

- Uncus convex at middle on caudal margin (Fig. 9) ................................................................. N. asyntacta (Meyrick)

6. Phallus not bifurcated distally...................................................................................................................................... 7

- Phallus bifurcated distally (Fig. 10) ....................................................................................... N. gerasimovi Zagulajev

7. Gnathos broad, fan-shaped distally (Fig. 15) .............................................................................. N. flabellata sp. nov.

- Gnathos narrowed distally (Fig. 13) .................................................................................... N. ningshanensis sp. nov.