Ypsolopha vittella
Creators: name: Jin, Qing
name: Wang, Shuxia
name: Li, Houhun
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Plutellidae
Ypsolopha
Ypsolopha vittella

description: Key to species of Ypsolopha vittella -group based on external characters
1. Forewing brown, with purple metallic shine (Fig. 25)......................................... Y. purpurata sp. nov.
- Forewing not brown, without purple metallic shine......................................................... 2
2. Forewing with a broad streak along dorsum............................................................... 3
- Forewing without such broad streak.................................................................... 12
3. Streak along dorsum darker than ground colour of forewing.................................................. 4
- Streak along dorsum paler than ground colour of forewing................................................... 10
4. Streak with upper margin yellowish white................................................................. 5
- Streak without differently colored upper margin............................................................ 6
5. Forewing with several rows of dark brown scales (Fig. 22).................................. Y. mucronulata sp. nov.
- Forewing without such rows as above (Fig. 23)............................................. Y. bicostata sp. nov.
6. Forewing with apex protruded triangularly (Fig. 21)................................................ Y. horridella
- Forewing with apex rounded........................................................................... 7
7. Forewing with several rows of ocherous brown scales on distal 2/3 (Fig. 20)................................ Y. yangi
- Forewing without such scales as above................................................................... 8
8. Forewing with R4 and R5 very short stalked (Fig. 57), cell with a dark brown strip at end (Fig. 6)............ Y. amoenella
- Forewing with R4 and R5 separated, cell without dark brown strip at end......................................... 9
9. Forewing with a longitudinal interrupted median dark brown strip on distal half (Fig. 4)...................... Y. vittella
- Forewing without such strip as above (Fig. 5)...................................................... Y. japonica
10. Forewing yellowish brown mixed with dark brown on distal 1/3 (Fig. 9)...................... Y. flaviterminata sp. nov.
- Forewing grayish white or grayish brown on distal 1/3...................................................... 11
11. Streak on dorsum of forewing white (Fig. 8)..................................................... Y. leuconotella
- Streak on dorsum of forewing grayish white (Fig. 7)............................................... Y. hebeiensis
12. Forewing uniformly pale yellow except having a brown dot at 2/3 of fold (Fig. 10)................... Y. flavida sp. nov.
- Forewing not uniformly coloured, with fine markings...................................................... 13
13. Forewing with a triangular yellowish brown patch ranging from dorsal 1/4 to 3/4 (Fig. 11).................. Y. asperella
- Forewing without such a patch......................................................................... 14
14. Forewing with two parallel stripes...................................................................... 15
- Forewing without such stripes......................................................................... 16
15. Thorax yellowish brown (Fig. 12), forewing with R4 and R5 separated (Fig. 63)........................... Y. parallela
- Thorax yellowish white (Fig. 13), forewing with R4 and R5 short stalked (Fig. 64)...................... Y. sarmaticella
16. Forewing with several rows of small dots................................................................ 17
- Forewing without such dots........................................................................... 18
17. Forewing with a white strip from end of cell to apex (Fig. 16)................................ Y. longisaccata sp. nov.
- Forewing without white strip (Fig. 17)................................................. Y. fascimaculata sp. nov.
18. Forewing with erect scales............................................................................ 19
- Forewing without erect scales......................................................................... 20
19. Forewing with white and brown strips along veins (Fig. 18)........................................... Y. scabrella
- Forewing without strips as above (Fig. 19)......................................................... Y. acerella
20. Wing expanse over 23.0 mm, apex protruded triangularly (Fig. 24).............................. Y. latiuscula sp. nov.
- Wing expanse equal to or less than 20.0 mm, apex rounded.................................................. 21
21. Forewing with grayish brown or ocherous brown strips along veins (Fig. 15)......................... Y. albula sp. nov.
- Forewing without strips along veins (Fig. 14)................................................... Y. parenthesella
description: Published as part of Jin, Qing, Wang, Shuxia & Li, Houhun, 2013, Review of the genus Ypsolopha Latreille, 1796 from China (Lepidoptera: Ypsolophidae), pp. 1-91 in Zootaxa 3705 (1) on pages 10-11, DOI: 10.11646/zootaxa.3705.1.1, http://zenodo.org/record/284569