Key to the known species of Gomphidictinus

1. Abdominal segment 1 with a ventral tubercle...................................................... G. perakensis

- Abdominal segment 1 without ventral tubercle.............................................................. 2

2. Hind wing subtriangle not reticulated, anal triangle 5- or 6-celled.................................... G. tongi sp. nov.

- Hind wind subtriangle reticulated, anal triangle 7 to 10-celled......................................... G. kompieri