Planososibia Seow-Choen 2016

Key to females of Planososibia Seow-Choen, 2016 from China

1. Large size, body length longer than 90 mm ...................................................... P. liui sp. nov.

- Small to medium-sized, body length shorter than 70 mm ...................................................... 2.

2. Posterior apices of alae extending beyond fifth abdominal tergum....................................... P. truncata

- Posterior apices of alae not extending beyond fifth abdominal tergum........................................... 3.

3. Head with prominent and acute small granules.............................................. P. brevialata sp. nov.

- Head with indistinct and rounded small granules............................................................ 4.

4. Posterior margin of anal abdominal segment with a small notch.............................. P. qiongensis comb. nov.

- Posterior margin of anal abdominal segment rounded............................................... P. platycerca