Thliptoceras

Zhang, Dandan, Xu, Jiawen & Li, Jinwei, 2014, Review of the genus Thliptoceras Warren, 1890 (Lepidoptera: Crambidae: Pyraustinae) from the Oriental region of China, Zootaxa 3796 (2), pp. 265-286 : 267

Key to Thliptoceras species of the Chinese Oriental region based on males

1 Forewing with modified, broad scales along posterior margin in male; 2A absent in forewing in both sexes.............. 2

- Forewing without modified scales in male; 2A present in forewing.............................................. 6

2 Sacculus with two processes............................................................................. 3

- Sacculus with one process............................................................................... 5

3 Valva with projections from costa; sacculus with submedial process longer than distal process........... T. anthropophilum

- Costa of valva without projection; sacculus with submedial process shorter than distal process........................ 4

4 Uncus without setae; distal sacculus process short, stout, twisted, club-shaped and bent towards base; aedeagus without cornuti...................................................................................... T. impube sp. nov.

- Uncus setose; distal sacculus process long, slender, straight, finger-shaped, pointing outwardly; aedeagus with spine-shaped cornuti........................................................................... T. filamentosum sp. nov.

5 Valva with apex not curved upwardly, costa nearly straight with a minute spine at apex; juxta with carina......... T. sinense

- Valva with apex curved upwardly, costa strongly concave and without spine at apex; juxta without carina......... T. shafferi

6 Costa of valva with projection, excavation or spine; process of sacculus with rounded apex.......................... 7

- Costa of valva smoothly concave, without process, excavation or spine; process of sacculus with sharply pointed apex............................................................................................... T. formosanum

7 Costa of valva without excavation........................................................................ 8

- Costa of valva with excavation near apex.................................................................. 11

8 Sacculus process long, finger-shaped, extending beyond transtilla....................................... T. artatalis

- Sacculus process short, nipple-shaped, not extending beyond transtilla............................................ 9

9 Apex of valva with two small sharp points............................................... T. bicuspidatum sp. nov.

- Apex of valva with a single small sharp point.............................................................. 10

10 Anellus without sclerotization; aedeagus with spine-shaped cornuti.................................... T. fulvimargo

- Anellus with double thumb-shaped sclerotizations bearing minute spines; aedeagus without cornuti............ T. gladialis

11 Aedeagus with spine-shaped cornuti forming several groups; apex of valva with spine............................. 12

- Aedeagus with an oblique row of cornuti; apex of valva not with spine................................... T. caradjai

12 Costa of valva with finger-shaped process near apex; anellus a somewhat amorphous membrane.... T. semicirculare sp. nov.

- Costa of valva with rounded trapezoidal process near apex; anellus comprised of two parallel, connected, trough-shaped scle- rotizations......................................................................... T. bisulciforme sp. nov.