Eudonia

Li, Weichun, Li, Houhun & Nuss, Matthias, 2012, Taxonomic revision of the genus Eudonia Billberg, 1820 from China (Lepidoptera: Crambidae: Scopariinae), Zootaxa 3273, pp. 1-27 : 3-4

Key to Chinese species of Eudonia based on male genitalia

(excluding E. gigantea Sasaki whose male is unknown)

1. Gnathos without arm................................................................................. 2

- Gnathos with two arms................................................................................ 8

2. Phallus as long as valva............................................................................... 3

- Phallus about twice as long as valva..................................................................... 6

3. Valva with base wider than apex........................................................................ 4

- Valva with base narrower than apex...................................................................... 5

4. Uncus with spine on both posterolateral margins ( Fig. 22 )..................................... E. duospinata sp. n.

- Uncus without spine ( Fig. 21 )............................................................... E. magna sp. n.

5. Phallus curved near base ( Sasaki 1991: Fig. 21 )................................................ E. microdontalis

- Phallus straight near base ( Sasaki 1991: Fig. 23 )................................................... E. persimilis

6. Uncus ending with ovate hatch ( Fig. 23 )....................................................... E. cavata sp. n.

- Uncus without hatch.................................................................................. 7

7. Costa convex at middle ( Sasaki 1998: Fig. 34 )..................................................... E. albilinea

- Costa straight at middle ( Sasaki 1991: Fig. 22 )..................................................... E. puellaris

8. Valva with distal one third tapering to apex................................................................ 9

- Valva with distal part broadened or same width........................................................... 13

9. Uncus notched or convex on posterior margin............................................................. 10

- Uncus straight on posterior margin..................................................................... 12

10. Uncus convex posteriorly ( Sasaki 1998: Fig. 32 ).................................................... E. owadai

- Uncus notched posteriorly at middle.................................................................... 11

11. Valva angled ventrally at two thirds, phallus straight ( Sasaki 1998: Fig. 35)........................... E. taiwanalpina

- Valva arched ventrally at two thirds, phallus curved at middle ( Fig. 18 )....................... E. zhongdianensis sp. n.

12. Phallus nearly as long as valva ( Sasaki 1998: Fig. 31 )................................................. E. inouei

- Phallus about half length of valva ( Sasaki 1998: Fig. 33 )............................................. E. umbrosa

13. Valva broadened distally............................................................................. 14

- Valva not broadened distally.......................................................................... 18

14. Phallus straight..................................................................................... 15

- Phallus curved at middle............................................................................. 16

15. Gnathos as long as uncus ( Fig. 19 )............................................................ E. furva sp. n.

- Gnathos two thirds length of uncus ( Sasaki 1998: Fig. 25 )........................................... E. promiscua

16. Valva concave ventrally at about two fifths ( Fig. 15 )......................................... E. rectilineata sp. n.

- Valva straight ventrally............................................................................... 17

17. Juxta with width one third of length ( Nuss 2005: Fig. 107)........................................ E. truncicolella

- Juxta with width half as long as length ( Fig. 16 )............................................ E. wolongensis sp. n.

18. Valva with base much wider than apex.................................................................. 19

- Valva with base narrower than or as wide as apex.......................................................... 20

19. Valva almost straight ventrally ( Fig. 17 )................................................... E. lijiangensis sp. n.

- Valva conspicuously concaved ventrally at middle ( Fig. 20 )..................................... E. hexamera sp. n.

20. Valva with base much narrower than apex................................................................ 21

- Valva with base nearly as wide as apex.................................................................. 22

21. Valva straight ventrally, phallus curved at middle ( Nuss 2005: Fig. 81)................................ E. mercurella

- Valva concave ventrally at one third, phallus nearly straight ( Sasaki 1999: Fig. 6 )........................ E. apicifusca

22. Valva with a ventroapical protuberance ( Nuss 2005: Fig. 84)......................................... E. lacustrata

- Valva without such a protuberance...................................................................... 23

23. Phallus straight, shorter than valva ( Fig. 24 )........................................................ E. tibetalis

- Phallus slithtly curved, longer than valva ( Fig. 14 )........................................ E. singulannulata sp. n.

Figures

FIGURES 20 – 24. Male genitalia of Eudonia spp. 20. E. hexamera sp. n., holotype, genitalia slide No. LWC 08224; 21. E. magna sp. n., holotype, genitalia slide No. LWC 07476; 22, E. duospinata sp. n., holotype, genitalia slide No. LWC 06212; 23. E. cavata sp. n., holotype, genitalia slide No. LWC 05025; 24. E. tibetalis (Caradja), genitalia slide No. LWC 08110 (scales: 0.5 mm).

FIGURES 31 – 34. Female genitalia of Eudonia spp. 31. E. hexamera sp. n., paratype, genitalia slide No. LWC 06257; 32. E. magna sp. n., paratype, genitalia slide No. LWC 08010; 33. E. duospinata sp. n., paratype, genitalia slide No. LWC 07505; 34. E. cavata sp. n., paratype, genitalia slide No. LWC 08073 (scales: 0.5 mm).

FIGURES 14 – 19. Male genitalia of Eudonia spp. 14. E. singulannulata sp. n., holotype, genitalia slide No. LWC 06272; 15. E. rectilineata sp. n., holotype, genitalia slide No. LWC 08058; 16. E. wolongensis sp. n., holotype, genitalia slide No. LWC 08047; 17. E. lijiangensis sp. n., holotype, genitalia slide No. LWC 08128; 18. E. zhongdianensis sp. n., holotype, genitalia slide No. LWC 06002; 19. E. furva sp. n., holotype, genitalia slide No. LWC 06135 (scales: 0.5 mm).

FIGURES 25 – 27. Female genitalia of Eudonia spp. 25. E. singulannulata sp. n., paratype, genitalia slide No. LWC 07499; 26. E. rectilineata sp. n., paratype, genitalia slide No. LWC 08244; 27. E. wolongensis sp. n., paratype, genitalia slide No. LWC 08074 (scales: 0.5 mm).

FIGURES 6 – 9. Adults of Eudonia spp. 6. E. zhongdianensis sp. n., paratype, female; 7. E. furva sp. n., paratype, female; 8. E. hexamera sp. n., paratype, female; 9. E. magna sp. n., paratype, male.