Zelodia van Achterberg & Long, 2010

Key to Chinese species of the genus Zelodia van Achterberg & Long

1. Hind tibia largely yellowish brown ( Figs. 9 View FIGURES 9 , 62)............................................................. 2

- Hind tibia black or dark brown (Figs. 17, 26, 35, 44, 53)...................................................... 4

2. Basal half of pterostigma yellow (Fig. 56); hind femur brownish yellow and similar to basal half of hind tibia (Figs. 55, 62); basal half of first tergite and apex of metasoma brownish yellow; [malar space 1.8–2.0 × basal width of mandible (Fig. 61)]. China (Zhejiang, Fujian, Hunan, Guangdong, Hainan, Guizhou, Tibet, Taiwan); Japan; Korea; Far East Russia....................................................................................... Z. nihonensis ( Sharkey, 1996)

- Basal half of pterostigma dark brown ( Fig. 2 View FIGURES 2 ); hind femur dark brown, contrasting with brownish yellow basal half of hind tibia ( Figs. 1 View FIGURES 1 , 9 View FIGURES 9 ); basal half of first tergite ivory, paler than black or dark brown apex of metasoma......................... 3

3. Malar space 1.4–1.5 × basal width of mandible ( Fig. 7 View FIGURES 7 ); second metasomal tergite ivory. China (Zhejiang, Fujian, Jiangxi, Guangdong, Shaanxi)........................................................ Z. absoluta (Chen & Yang, 1998)

- Malar space 2.2–2.4 × basal width of mandible; second metasomal tergite largely dark brown. China (Fujian)................................................................................... Z. achterbergi ( Chen & Yang, 2006)

4. Length of first tergite 3.6 × its apical width (Fig. 18); middle tibial spurs dark brown strongly contrasting with whitish middle tarsus ( Fig. 10 View FIGURES 10 ). China (Hainan); Vietnam................................ Z. anginota van Achterberg & Long, 2010

- Length of first tergite 1.8–2.5 × its apical width (Figs. 27, 36, 45, 54); middle tibial spurs and middle tarsus similarly coloured (Figs. 19, 28, 37, 46)................................................................................... 5

5. Basal quarter of pterostigma yellowish brown (Fig. 38); entire mesosoma yellowish brown. China (Jilin, Hainan, Yunnan)................................................................................ Z. liui Wu & Tang , sp. nov.

- Basal quarter of pterostigma dark brown (Figs. 20, 47); mesosoma at least partly black or dark brown.................. 6

6 Mesosoma dorsally black (Fig. 28); middle leg black; head strongly shiny; temples comparatively long (Fig. 32). China (Henan)................................................................. Z. henanensis Wu & Tang , sp. nov.

- Mesosoma dorsally (except propodeum) yellowish brown or reddish brown (Figs. 19, 37, 46); middle leg largely yellowish brown; head moderately shiny; temples shorter (Figs. 23, 50).................................................. 7

7. Head and basal half of first tergite of ♀ dorsally black; tegulae pale yellowish. China (Fujian)................................................................................................ Z. reticulosa ( Chen & Yang, 2006)

- Head yellowish brown; basal half of first tergite ivory, if black ( Z. dravida ) then tegulae brown or dark brown (Figs. 21, 22) 8

8. Submedial cell of fore wing largely glabrous; middle trochantellus and base of middle femur dark brown; [first tergite and sides of second tergite of ♀ pale yellowish, remainder of second tergite dark brown, but first and second tergites of ♂ largely brown]. China (Fujian); Japan; Russia......................................... Z. varipes (van Achterberg & Maeto, 1990)

- Submedial cell of fore wing densely setose (Fig. 47); middle trochantellus and femur yellowish brown (Fig. 46).......... 9

9. Length of hind femur approx. 3.4 × as long as its apical width (Fig. 26); malar space approx. 1.7 × basal width of mandible (Fig. 25); basal half of first tergite of ♀ black. China (Guangxi); India...................... Z. dravida ( Bhat & Gupta, 1977)

- Length of hind femur 3.9–4.1 × its apical width (Fig. 53); malar space 2.0–2.3 × basal width of mandible (Fig. 52); basal half of first tergite of ♀ ivory (Fig. 54). China (Fujian, Jiangxi, Hainan).................. Z. longiptera (Yang & Chen, 2006)