Key to species of Parafagocyba Kuoh & Hu (males, updated from Huang & Zhang, 2013)

1 Subgenital plate with one basal macroseta at lateral margin..................................................... 2

- Subgenital plate with more than one basal macroseta at lateral margin............................................ 4

2 Aedeagal ventral process furcate.................................................................. P. forficula

- Aedeagal ventral process not furcate...................................................................... 3

3 Aedeagal ventral process proximally with sculptures................................................... P. binaria

- Aedeagal ventral process with dorsal membranous area, without sculpturing...................... P. membrana sp. nov.

4 Aedeagal ventral process nearly straight, with sculpturing medially................................. P. striata sp. nov.

- Aedeagal ventral process sinuate, without sculpturing medially.................................... P. longa sp. nov.