Key to species of Tenupalpa based on adults and male genitalia

1. Forewing with black and yellow longitudinal streaks in basal 1/3..................................... T. xanthodora

- Forewing without black and yellow streaks in basal 1/3....................................................... 2

2. Forewing without an orange distal patch; hindwing uniformly grey to fuscous..................................... 3

- Forewing with a distinctive orange distal patch; hindwing with apex tinged with black, subapex white.................. 9

3. Costa of valva with a projection at middle.................................................................. 4

- Costa of valva without a projection....................................................................... 5

4. Forewing darkened apically; valva with an elongate-triangular projection at middle of costa......... T. latifasciata sp. nov.

- Forewing not darkened apically; valva with a trapezoidal projection at middle of costa................... T. nephodesma

5. Anellus lobe with a robust apical bristle (or spine), almost reaching apex of valva......................... T. angustella

- Anellus lobe without a robust apical bristle................................................................. 6

6. Junction of valva and juxta strongly angled; base of valva strongly curved inward................... T. angulosa sp. nov.

- Junction of valva and juxta not strongly angled; based of valva slightly or not curved inward......................... 7

7. Uncus widest at base, elongated distally................................................... T. isabellina sp. nov.

- Uncus widest at middle, not elongated distally.............................................................. 8

8. Sternum VIII rounded; anellus lobe fusiform................................................. T. fuscalata sp. nov.

- Sternum VIII sub-triangular; anellus lobe ovate............................................ T. immaculata sp. nov.

9. Forewing apical spot absent............................................................................ 10

- Forewing apical spot present........................................................................... 11

10. Valva not spatulate distally; anellus lobe oval with a long apical bristle................................ T. flavitermina

- Valva spatulate distally; anellus lobe falcate with a short subapical bristle............................ T. falcata sp. nov.

11. Valva acute apically.................................................................. T. uncativalva sp. nov.

- Valva rounded apically................................................................................ 12

12. Anellus lobes asymmetrical.............................................................. T. dissimilis sp. nov.

- Anellus lobes symmetrical............................................................................. 13

13. Anellus lobe linear, exceeding apex of valva....................................................... T. venustalis

- Anellus lobe not linear, not exceeding apex of valva......................................................... 14

14. Anellus lobe without an apical or subapical bristle......................................... T. perparviloba sp. nov.

- Anellus lobe with an apical or subapical bristle............................................................. 15

15. Anellus lobe digitate, curved inward.............................................................. T. biformis

- Anellus lobe round or oval, not curved................................................................... 16

16. Distal margin of uncus deeply concave; anellus lobe with a strongly developed, horn-like apical bristle; juxta with a large digitate projection........................................................................... T. zhengi sp. nov.

- Uncus not concave distally; anellus lobe with a hair-like apical bristle; juxta without a digitate projection.............. 17

17. Costa of valva acute medially........................................................... T. acutimedia sp. nov.

- Costa of valva not acute medially....................................................................... 18

18. Costa of valva broadly convex medially................................................. T. magniguttata sp. nov.

- Costa of valva not convex medially...................................................................... 19

19. Apex of valva usually with a short projection; aedeagus acute at apex.............................. T. acutata sp. nov.

- Apex of valva without a projection; aedeagus not acute at apex................................................ 20

20. Gnathos thickened medially; juxta with a short projection; aedeagus with basal 2/5 dilated.......... T. crassimedia sp. nov.

- Gnathos not thickened medially; juxta without a projection; aedeagus with basal half dilated....... T. breviaedeaga sp. nov.