Thecobathra

Fan, Ximei, Jin, Qing & Li, Houhun, 2008, Seven new species and a checklist of the genus Thecobathra Meyrick from China (Lepidoptera: Yponomeutidae), Zootaxa 1821, pp. 13-24 : 14-15

Key to species of Thecobathra in China based on male genitalia

(excluding T. eta , T. microsignata and T. argophenes )

1 Phallus with two rows of dentation ........................................................................................................... 2

- Phallus with one row of dentation...............................................................................................................5

2 Phallus with two big teeth at base ......................................................................... T. longisaccata sp. nov.

- Phallus without such tooth at base.............................................................................................................. 3

3 Valva with a sclerotized, spine-shaped process arising from base ............................... T. latibasis sp. nov.

- Valva without such process at base............................................................................................................. 4

4 Sacculus rounded in shape........................................................................................................... T. yasudai

- Sacculus elongate triangular, with short spine-shaped apex............................. T. badagongshana sp. nov.

5 Costa with undulant or finger-shaped protuberance .................................................................................. 6

- Costa simple, without protuberance..........................................................................................................12

6 Sacculus with fold portion dorsally.............................................................................................................7

- Sacculus without any fold portion dorsally...............................................................................................11

7 Phallus with two rows of dentation equal in length, with two big teeth at base........................ T. sororiata

- Phallus with two rows of dentation unequal in length, without tooth at base ............................................ 8

8 Valva with hairs on distal 1/2 of ventral surface, ventral margin bluntly angled at middle .......................... .................................................................................................................................... T. partinuda sp. nov.

- Valva with hairs on distal 2/3 of ventral surface, ventral margin smooth .................................................. 9

9 Valva concave inward near base ventrally.................................................................................................10

- Valva not concave ventrally...................................................................................................... T. tetragona

10 Distal half of valva narrowed sharply; phallus densely dentate .................................................... T. chiona

- Distal part of valva indistinctly narrowed; phallus sparsely dentate .............................................. T. delias

11 Sacculus with a semicircular process at apex ................................................................................. T. kappa

- Sacculus without process at apex................................................................................................... T. flavida

12 Ventral plate of gnathos spinose ............................................................................................................... 13

- Ventral plate of gnathos not spinose..........................................................................................................15

13 Ventral plate of gnathos medially concave on anterior margin ..................................... T. paranas sp. nov.

- Ventral plate of gnathos rounded on anterior margin................................................................................14

14 Sacculus obviously concave at middle, triangular apically .............................................................. T. anas

- Sacculus weakly developed, not concave or protrudent apically ................................................. T. lambda

15 Phallus with two big teeth near base.......................................................................................... T. bidentata

- Phallus without tooth near base................................................................................................................16

16 Sacculus with a lobe at base, with a subulate process at apex .................................. T. basilobata sp. nov.

- Sacculus with neither lobe at base nor process at apex.............................................................................17

17 Valva with a sclerotized loop at base............................................................................................... T. ovata

- Valva without sclerotized loop at base.......................................................................................................18

18 Socius with distal 1/3 semicircularly dilated ........................................................... T. acrivalvata sp. nov.

- Socius nearly parallel-sided......................................................................................................................19

19 Phallus distinctly curved at middle; sacculus triangular................................................................ T. albana

- Phallus straight; sacculus a sclerotized strip with a semicircular apical protuberance............... T. yunnana