Phalaena degeerella, Linnaeus, 1758

Sun, Hao, Wang, Shuxia & Li, Houhun, 2022, Review of the degeerella species group of the genus Nemophora Hoffmannsegg 1798 (Lepidoptera: Adelidae) from China, Zootaxa 5219 (4), pp. 301-338 : 303-304

publication ID	https://doi.org/ 10.11646/zootaxa.5219.4.1
publication LSID	lsid:zoobank.org:pub:234D6F6E-9EA6-404F-B2A1-1B07F2EF418E
DOI	https://doi.org/10.5281/zenodo.7433968
persistent identifier	https://treatment.plazi.org/id/3B4587A5-147D-FF48-29D9-BF2463C73620
treatment provided by	Plazi
scientific name	Phalaena degeerella
status

Treatment

Key to species of the degeerella group in China based on external characters and male genitalia

1. Hindwing with a yellow spot at apex of CuA 2 ( Caradja 1927: 63)..................................... N. syfaniella View in CoL

- Hindwing without yellow spot.......................................................................... 2

2. Forewing with fascia separated.......................................................................... 3

- Forewing with fascia not separated....................................................................... 4

3. Forewing with black dots beyond outer fascia posteriorly ( Fig. 22 View FIGURES 19‒22 )............................ N. seorsifascia View in CoL sp. nov.

- Forewing without black dot beyond outer fascia ( Caradja 1927: 64).................................. N. disjunctella View in CoL

4. Forewing with V-shaped pattern from beyond outer fascia to apex.............................................. 5

- Forewing without V-shaped pattern from beyond outer fascia to apex............................................ 6

5. Forewing with a streak along anterior margin of cell curved apically ( Figs 20, 21 View FIGURES 19‒22 )............... N. recurvatifera View in CoL sp. nov.

- Forewing with a straight streak along anterior margin of cell ( Küppers 1980: 277, fig. 78)............................................................................................................... N. ochsenheimerella View in CoL

6. Forewing with four yellow stripes beyond middle of outer fascia ( Fig. 14 View FIGURES 13‒18 )............................. N. karafutonis View in CoL

- Forewing without yellow stripes beyond middle of outer fascia................................................ 7

7. Forewing with a distally forked stripe from beyond outer fascia to apex ( Fig. 5 View FIGURES 1‒6 )................ N. bifurcifascia View in CoL sp. nov.

- Forewing without forked stripe from beyond outer fascia to apex............................................... 8

8. Phallus with sclerotized belt............................................................................ 9

- Phallus without sclerotized belt......................................................................... 18

9. Juxta borne at middle of phallus, stalk swollen ( Fig. 46 View FIGURES 44‒47 )......................................... N. staudingerella View in CoL

- Juxta borne near apex of phallus, stalk not swollen......................................................... 10

10. Tegumen with plate.................................................................................. 11

- Tegumen without plate............................................................................... 14

11. Transtilla broad rectangular; uncus reniform ( Fig. 39 View FIGURES 39‒43 ).................................... N. latirectangula View in CoL sp. nov.

- Transtilla narrowly banded; uncus not reniform............................................................ 12

12. Valva fused for basal 1/4; phallus without denticles ( Fig. 35 View FIGURES 33‒38 )............................ N. gaoligongshana View in CoL sp. nov.

- Valva separated basally; phallus with denticles............................................................. 13

13. Valva rounded at apex, slightly sinuate on ventral margin ( Fig. 41 View FIGURES 39‒43 ).......................... N. purpuratifera View in CoL sp. nov.

- Valva pointed at apex, obliquely straight on ventral margin ( Fig. 32 View FIGURES 27‒32 )............................. N. borealis View in CoL sp. nov.

14. Valva with three longitudinal ridges on ventral surface; phallus with two processes ( Fig. 47 View FIGURES 44‒47 )........... N. triuga View in CoL sp. nov.

- Valva without longitudinal ridge on ventral surface; phallus without process..................................... 15

15. Valva with two triangular processes at basal 1/3 on ventral margin; transtilla with median process short digitate ( Fig. 29 View FIGURES 27‒32 ).............................................................................................. N. augites View in CoL

- Valva without triangular processes on ventral margin; transtilla with median process not digitate..................... 16

16. Tegumen with a median ridge ( Fig. 38 View FIGURES 33‒38 ).......................................................... N. lapikella View in CoL

- Tegumen without median ridge......................................................................... 17

17. Valva obliquely straight from basal 1/4 to middle on ventral margin; vesica with belts of short spines ( Fig. 45 View FIGURES 44‒47 )............................................................................................ N. spinatibaltea View in CoL sp. nov.

- Valva vertically straight from basal 1/4 to middle on ventral margin; vesica without belts of short spines ( Fig. 33 View FIGURES 33‒38 )................................................................................................. N. chalybeella View in CoL

18. Valva fused basally.................................................................................. 19

- Valva separated basally............................................................................... 23

19. Valva spatulate; vesica with two rows of spines ( Hirowatari 2005: 323, fig. 8).......................... N. polychorda View in CoL

- Valva not spatulate; vesica without spines................................................................ 20

20. Uncus triangular.................................................................................... 21

- Uncus not triangular................................................................................. 22

21. Phallus with a banded and two equally narrow processes ( Fig. 31 View FIGURES 27‒32 )............................. N. biprocessa View in CoL sp. nov.

- Phallus without process ( Fig. 42 View FIGURES 39‒43 )....................................................... N. ravidifera View in CoL sp. nov.

22. Phallus with a belt of short spines; sacculus subtriangular ( Fig. 40 View FIGURES 39‒43 )......................... N. parvaprocessa View in CoL sp. nov.

- Phallus without belt of short spines; sacculus not subtriangular ( Fig. 27 View FIGURES 27‒32 )................................ N. amatella View in CoL

23. Vinculum produced posteromedially; sacculus rectangular ( Fig. 28 View FIGURES 27‒32 )......................... N. apiciprocessa View in CoL sp. nov.

- Vinculum not produced posteromedially; sacculus not rectangular............................................. 24

24. Sacculus reaching near apex of ventral margin; valva digitate ( Fig. 34 View FIGURES 33‒38 )......................... N. digitivalva View in CoL sp. nov.

- Sacculus reaching basal 1/5 of ventral margin; valva subtriangular ( Fig. 36 View FIGURES 33‒38 )............................. N. japonica View in CoL