Krisna, Kirkaldy, 1900

Wang, Xian-Yi, Wu, Yun-Fei & Dai, Ren-Huai, 2018, Three new species of the leafhopper subfamily Iassinae (Hemiptera: Cicadellidae) from China, Zootaxa 4442 (3), pp. 378-388: 383

publication ID

https://doi.org/10.11646/zootaxa.4442.3.2

publication LSID

lsid:zoobank.org:pub:09379BA2-979C-41AC-8B04-28FDFB0AB91F

persistent identifier

http://treatment.plazi.org/id/4730878D-D95E-B17D-C7A4-FC2992A6F80C

treatment provided by

Plazi

scientific name

Krisna
status

 

Key to species of Krisna   from China (modified from Zhang et al. 2008)

1. Ocelli placed close to adjacent eye at distance less than half diameter of ocellus.................................... 2

- Ocelli placed slightly away from adjacent eye by distance equal to or more than half diameter of ocellus................ 3

2. Crown with two anterior transverse black spots............................................ K. strigicollis (Spinola)  

- Crown with four anterior transverse black spots ( Fig. 3 View FIGURES 1–9. 1, 4, 7 )................................. K. quadrimaculosus   sp. nov.

3. Male pygofer lobe with long ventral process extended to caudal margin in addition to short pointed ventral process at middle of ventral margin ( Fig. 63 View FIGURES 43–65 )........................................................... K. nigromarginata Cai & He  

- Male pygofer lobe with long ventral process extended to caudal margin, without short pointed ventral process ( Figs. 64–65 View FIGURES 43–65 )...................................................................................................... 4

4. Aedeagal shaft apex strongly inflated in ventral aspect ( Fig. 58 View FIGURES 43–65 )................................................. 5

- Aedeagal shaft parallel-sided or tapered in ventral aspect ( Figs. 51–58 View FIGURES 43–65 )........................................... 6

5. Male with ventral pygofer process spiculate in distal half ( Figs. 44–45 View FIGURES 43–65 )...................... K. rufimarginata Cai & He  

- Male with ventral pygofer process not spiculate in distal half ( Fig. 64 View FIGURES 43–65 )......................... K. expansiva Li & Wang  

6. Aedeagus with ventral margin distinctly concave in lateral aspect................................. K. sherwilli Distant  

- Aedeagus with convex or straight ventral margin in lateral aspect ( Figs. 46, 51, 54–55 View FIGURES 43–65 ).............................. 7

7. Male pygofer ventral process with spine or projection near base ( Figs. 47–48 View FIGURES 43–65 )..................................... 8

- Male pygofer ventral process without basal spine or projection ( Figs. 49–50 View FIGURES 43–65 )...................................... 9

8. Male pygofer ventral process with short spine; aedeagal shaft with strongly concavely excavated dorsal margin................................................................................................... K. kirbyi (Baker)  

- Male pygofer ventral process with long projection; aedeagal shaft narrowed gradually to apex, without strongly concavely excavated dorsal margin ( Figs. 47–48 View FIGURES 43–65 ).................................................................... 10

9. Basal projection of ventral process longer than half length of pygofer process ( Fig. 49 View FIGURES 43–65 ); aedeagal shaft being symmetrical at apex ( Figs. 52, 57 View FIGURES 43–65 )............................................................. K. furcata Zhang, Zhang & Dai  

- Basal projection of ventral process less than half length of pygofer process ( Fig. 50 View FIGURES 43–65 ); aedeagal shaft asymmetrical at apex ( Fig. 53 View FIGURES 43–65 )................................................................................ K. viridula Li & Wang  

10. Aedeagal shaft with angular process at base in lateral view ( Fig. 54 View FIGURES 43–65 ); ventral pygofer triangular process sinuate near apex ( Fig. 48 View FIGURES 43–65 ).................................................................... K. viraktamathi Zhang, Zhang & Dai  

- Aedeagal shaft broadly rounded at base in lateral view, without angular process ( Figs. 46, 51, 62 View FIGURES 43–65 ); ventral pygofer process not sinuate near apex ( Fig. 47 View FIGURES 43–65 )............................................................................. 11

11. Male pygofer lacking prominent projection on ventral margin ( Fig. 47 View FIGURES 43–65 )............... K. daiyunensis Zhang, Zhang & Dai  

- Male pygofer with prominent projection on ventral margin.................................................... 12

12. Aedeagal shaft robust especially near base ( Fig. 55 View FIGURES 43–65 ); male with hind margin of eighth sternite convex ( Fig. 62 View FIGURES 43–65 ).............................................................................................. K. concava Li & Wang  

- Aedeagus broad-wide in lateral view ( Fig. 56 View FIGURES 43–65 ); male eighth sternite posterior margin broadly rounded ( Fig. 61 View FIGURES 43–65 )......................................................................................... K. yingjiangensis Li & Wang