Gynandrophthalma sikkimia, Jacoby, 1903

Key to identification of the S. sikkimia species-group

1 Antennae entirely brown. Antennomere IV not narrower than antennomere V. Frons about 0.7 times as wide as transverse diameter of eye in male, equal to that in female. Apex of aedeagus slightly bent ventrally in lateral view ( Fig. 19 View FIGURES 16–19 ). Pygidium of female with shallow emargination at apical margin. Spermatheca as in Fig. 24 View FIGURES 20–24 . Body length 4.8–6.1 mm. Vietnam............................................................................ Smaragdina vietnamica Medvedev, 2014

– Antennae brown with antennomeres IV–XI darkened to black.Antennomere IV slightly narrower than antennomere V. Pygidium of female with slightly truncated apical margin without emargination............................................ 2

2 Apical process of aedeagus toothed on each side and not emarginated on apex ( Fig. 17 View FIGURES 16–19 ). In lateral view apex not bent ventrally. Frons narrower 0.55–0.70 as wide as transverse diameter of eye in male and approximately as wide as in female. Underside and legs brown. Body length 5–6 mm. Thailand............................. Smaragdina constrictifrons Medvedev, 2010

– Apical process of aedeagus not toothed on each side and more or less emarginate on apex. In lateral view apex strongly bent ventrally............................................................................................ 3

3 Ventral side of body and legs brown. Frons of male somewhat wider, 0.77 times as wide as transverse diameter of eye. Aedeagus not depressed below gonopore and not appearing sinuous in lateral view ( Fig. 16 View FIGURES 16–19 ). Spermatheca with long frizzy ductus ending by rather large spindle ( Fig. 22 View FIGURES 20–24 ). Body length 6.3–6.5 mm. Vietnam................... Smaragdina bienkowskii sp. nov.

– Ventral side of body and tarsi black or darkened. Frons of male somewhat narrower, 0.60-0.65 as wide as transverse diameter of eye. Aedeagus depressed below gonopore, therefore, in lateral view it appears thin and sinuous in its preapical part ( Fig. 18 View FIGURES 16–19 ). Spermatheca as in Fig. 23 View FIGURES 20–24 . Body length 4.3–6.0 mm. India, Bhutan, Nepal............ Smaragdina sikkimia ( Jacoby, 1903)