Key to species of genus Sternaulopius Fischer

1. Hypoclypeal depression present; mesoscutum sparsely or densely setose......................................... 2

- Hypoclypeal depression absent; mesoscutum more densely setose; precoxal sulcus and sternaulus slightly converging posteriorly......................................................................... S. duplicatus Wharton, 2006

2. Length of eye in dorsal view 2.8× temple; mesoscutum very shiny, smooth and sparsely setose; vein 1-SR+M of fore wing slightly curved................................................................... S. macrophthalmos sp. n.

- Length of eye in dorsal view 1.1× temple; mesoscutum densely covered with setae; vein 1-SR+M of fore wing slightly straight..................................................................... S. bisternaulicus Fischer, 1965