Kusala, Dworakowska, 1981

Song, Yuehua, Li, Zizhong & Xiong, Kangning, 2011, New species and new records of Erythroneurini from China (Hemiptera: Cicadellidae: Typhlocybinae), Zootaxa 2774, pp. 48-56 : 49

Key to males of Kusala

1 Aedeagal shaft with two apical processes, extended dorsally and ventrally respectively.............................. 2

- Aedeagal shaft with single apical process, only extended dorsally............................................... 3

2 Apical process curved dorsad of aedeagal shaft bifurcate................................... K. setosa ( Ahmed, 1971)

- Apical process curved dorsad of aedeagal shaft not bifurcate................................ K. salicis ( Ahmed, 1970)

3 Aedeagus with a large strong appendage, arising from the median of aedeagal shaft................................. 4

- Aedeagus with a large strong appendage, arising from the base of aedeagal shaft................................... 5

4 A large appendage of aedeagal shaft arised medially, which apex narrowed, bifurcate ( Fig. 19).......... K. populi sp. nov.

- A large appendage of aedeagal shaft arised medially, which apex expanded, not bifurcate ( Fig. 9).... K. datianensis sp. nov.

5 Aedeagus preatrium absent.............................................................................. 6

- Aedeagus preatrium present............................................................................. 8

6 Aedeagus without distinct dorsal apodeme, aedeagal shaft with subapical process........ K. colibria Chiang & Knight, 1990

- Aedeagus with expanded dorsal apodeme, aedeagal shaft without subapical process................................ 7

7 Apical process of aedeagal shaft long, much longer than length of dorsal apodeme........ K. maculata Dworakowska, 1981

- Apical process of aedeagal shaft short, much shorter than length of dorsal apodeme...... K. marmorata Sohi & Mann, 1992

8 Aedeagal shaft with a large long basal process, dorsal apodeme broadened, triangular in lateral view................................................................................................. K. pocsi Dworakowska, 1979

- Aedeagal shaft with a small short basal process, dorsal apodeme slender, not triangular in lateral view.................. 9

9 Basal appendage of aedeagal shaft acuminate apically............................... K. sagittata Dworakowska, 1981

- Basal appendage of aedeagal shaft rounded apically................................. K. distincta Dworakowska, 1981