Philostephanus difficilis (Lu & L.Y. Zheng, 1998)

Arbolygus difficilis Lu & Zheng, 1998c: 83. HT: male, China (SW), Sichuan, Mt Emei; NKUM.

Philostephanus vitaliter (non Distant, 1909): Hsiao, 1942: 259. Misidentification (see Yasunaga & Schwartz, 2007: 115).