Yoyetta enigmatica, Popple & Emery, 2020

Emery, David L., 2025, Description of four new cicada species in the genus Yoyetta Moulds (Hemiptera: Cicadidae: Cicadettinae), from Eastern Australia, Zootaxa 5665 (4), pp. 509-542 : 540

Key to females (excluding Y. enigmatica for which the female is unknown)

1. Hind wing plagas white to pale pink...................................................................... 2

- Hind wing plagas cream, brown or orange to dark pink...................................................... 17

2. Ovipositor sheath extends <1 mm beyond apex of abdominal segment 9.......................................... 3

- Ovipositor sheath extends ≥ 1 mm beyond apex of abdominal segment 9......................................... 13

3. Pronotum mainly black or dark brown with a contrasting yellow-brown central marking............................. 4

- Pronotum mainly black with central marking inconspicuous or similar in colour to other parts of pronotum, or brown with or without a pale brown central marking..................................................................... 9

4. Head width <6 mm .................................................................................... 5

- Head width> 6 mm .................................................................................... 7

5. Tergites 6 and 7 orange anteriorly with broad black bands extending to posterior margins...................... Y. aaede

- Tergites 6 and 7 black or dark brown anteriorly and orange or orange-brown posteriorly............................. 6

6. Fore wing length> 21 mm ...................................................................... Y. electrica

- Fore wing length <21 mm ....................................................................... Y. incepta

7. Fore wings with basal membranes pale whitish-grey; tergite 8 mainly black, without a marking that is similar in shape to the yellow markings on tergites 5–7................................................................... Y. serrata

- Fore wings with basal membranes orange, light orange or pink; tergite 8 with distinct orange lateral marking that is similar in shape to yellow markings on tergites 5–7.................................................................. 8

8. Dorsal surface of head, pronotum and mesonotum typically covered with dense gold pubescence........... Y. abdominalis

- Dorsal surface of head, pronotum and mesonotum typically with sparse, black pubescence or without conspicuous pubescence................................................................................... Y. loftensis

9. Fore wing length <21 mm ....................................................................... Y. incepta

- Fore wing length> 21 mm ............................................................................. 10

10. Tergites 5–7 black with distinctive, yellow triangular markings on dorsolateral sides, widening towards posterior margins............................................................................................. Y. spectabilis

- Tergites 5–7 mainly brown to reddish-brown, or black....................................................... 11

11. Fore wing basal membranes red or pink................................................. Y. denisoni or Y. kershawi

- Fore wing basal membranes pale orange-white or orange..................................................... 12

12. Tergites 3–8 brown, a combination of brown (or reddish-brown) and black or entirely black................... Y. timothyi

- Tergites 3–8 black with orange coloration on dorsolateral posterior margins, with the orange most conspicuous on tergite 6............................................................................................ Y. subalpina

13. Ovipositor sheath extends ≥ 2 mm beyond apex of abdominal segment 9......................................... 14

- Ovipositor sheath extends <2 mm beyond apex of abdominal segment 9......................................... 16

14. Hind wing plagas narrow, restricted to basal margins of anal cell 3 and vein 2A............................. Y. verrens

- Hind wing plagas broad, extending to cover almost the entire jugum............................................ 15

15. Ovipositor sheath extends up to 3 mm beyond apex of abdominal segment 9............................ Y. hunterorum

- Ovipositor sheath extends approximately 4 mm beyond apex of abdominal segment 9....................... Y. douglasi

16. Fore wings distinctly angulated at costal nodes; costal veins mainly reddish-brown or orange-brown; dorsolateral sides of tergites mainly reddish-brown..................................................................... Y. regalis

- Fore wings gradually curved at node; costal veins mainly dark brown; dorsolateral sides of tergites mainly dull brown to black, eyes red...................................................................................... Y. grandis

17. Ovipositor sheath extends> 2 mm beyond apex of abdominal segment 9......................................... 18

- Ovipositor sheath extends <2 mm beyond apex of abdominal segment 9......................................... 19

18. Body length> 27mm ........................................................................... Y. ngarabal

- Body length <27 mm ...................................................................... Y. bushi sp. nov.

19. Ovipositor sheath extends ≥ 1 mm beyond apex of abdominal segment 9......................................... 20

- Ovipositor sheath extends <1 mm beyond apex of abdominal segment 9......................................... 21

20. Dorsal side of body mainly pale brown................................................................ Y. celis

- Dorsal side of body mainly brown.................................................................. Y. darug

21. Thorax mainly black.................................................................................. 22

- Thorax mainly brown (with black sigilla)................................................................. 33

22. Fore wing length> 27 mm ............................................................................. 23