Key to Japanese species of the genus Gotra

(female only)

1. Frons with a median longitudinal carina. Face entirely black. Epomia long, its lower end reaching to anterior margin of pronotum. Yellow band of T V to T VII not interrupted medially. .............. Go. ryukyuensis Kusigemati & Ikeshima, 1986

-. Frons without a median longitudinal carina. Face not entirely black (Fig. 9C). Epomia short to moderately long, its lower end far distant from anterior margin of pronotum. Yellow band of T V to T VII interrupted medially (Fig. 9B).......................................................................2

2. Hind coxa entirely black (Figs 9A, B). Hind femur almost entirely black (Figs 9A, B). Face black with an yellowish brown marking but without white marking (Fig. 9C). ....................................................... Go. elegans sp. nov.

-. Hind coxa reddish brown or black with white marking. Hind femur largely reddish brown. Face entirely whitish yellow or black with three conspicuous yellow markings (these markings partly united with each other).................................................................................3

3. Large species, body longer than 9.0 mm. Areolet wider than high. Mesoscutum with a median yellow marking. Mesopleuron with yellow markings. Metapleuron with a yellow marking ................................ Go. octocincta (Ashmead, 1906)

-. Small species, body shorter than 9.0 mm. Areolet higher than wide. Mesoscutum, mesopleuron and metapleuron entirely black. ............. Go. interrupta Kusigemati & Ikeshima, 1986