Phintella difficilis (♂,♀) (BÖSENBERG & STRAND, 1906)
synonym of
Phintella arenicolor (♂,♀) (GRUBE, 1861) [PROSZYNSKI, 1987: 151 sub Phintella melloteei]
combinations
Jotus difficilis (♀) BÖSENBERG & STRAND, 1906: 336
Jotus difficilis: (♂) PRÓSZYŃSKI 1978: 336
Icius difficilis: (♀) PRÓSZYŃSKI 1979: 311
Phintella difficilis: (♂,♀) YAGINUMA 1986: 129
Jetus difficilis (♂,♀) ZHAO 1993: 401 (lapsus)
external sources for more info