Thliptoceras

Key to Thliptoceras species of the Chinese Oriental region based on males 1 Forewing with modified, broad scales along posterior margin in male; 2 A absent in forewing in both sexes.............. 2 - Forewing without modified scales in male; 2 A 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.
Published as part of Zhang, Dandan, Xu, Jiawen & Li, Jinwei, 2014, Review of the genus Thliptoceras Warren, 1890 (Lepidoptera: Crambidae: Pyraustinae) from the Oriental region of China, pp. 265-286 in Zootaxa 3796 (2) on page 267, DOI: 10.11646/zootaxa.3796.2.3, http://zenodo.org/record/230569