In synonymy:
Piratula bilobata (Tullgren, 1901, T from Pardosa) = Piratula insularis (Emerton, 1885) (Wallace, 1950: 77, sub Pirata)
Piratula eugeni (Roewer, 1951) = Piratula knorri (Scopoli, 1763) (Buchar, 1966a: 217, sub Pirata)
Piratula exigua (Banks, 1892) = Piratula minuta (Emerton, 1885) (Chamberlin, 1908: 303, sub Pirata)
Piratula humicola (Montgomery, 1902, T from Allocosa) = Piratula minuta (Emerton, 1885) (Wallace & Exline, 1978: 96, sub Pirata)
Piratula japonica (Tanaka, 1974) = Piratula piratoides (Bösenberg & Strand, 1906) (Yaginuma, 1978a: 16, sub Pirata)
Piratula libera (Montgomery, 1902) = Piratula insularis (Emerton, 1885) (Chamberlin, 1908: 311, sub Pirata)
Piratula moodyi (Hull, 1950) = Piratula uliginosa (Thorell, 1856) (Buchar, 1966a: 218, sub Pirata)
Piratula nanshanensis (Yin & Wang, 1984) = Piratula procurva (Bösenberg & Strand, 1906) (Yu & Song, 1988c: 119, sub Pirata)
Piratula piccolo (Dahl, 1908) = Piratula insularis (Emerton, 1885) (Hackman, 1954: 32, sub Pirata)
Piratula praedatoria (Schenkel, 1953) = Piratula piratoides (Bösenberg & Strand, 1906) (Song, 1987: 240, sub Pirata)
Piratula procurva sinensis (Song, Shang, Wang, C. F. Cheng & S. X. Cheng, 1978) = Piratula procurva (Bösenberg & Strand, 1906) (Song, 1987: 241, sub Pirata)
Piratula qinlingensis (Zheng & Qiu, 1980) = Piratula yaginumai (Tanaka, 1974) (Song, 1987: 244, sub Pirata)
Piratula sagaphila (Strand, 1918, T from Hyaenosa) = Piratula procurva (Bösenberg & Strand, 1906) (Tanaka, 1988a: 57, sub Pirata)
Piratula wuchangensis (Schenkel, 1963) = Piratula piratoides (Bösenberg & Strand, 1906) (Song, 1987: 240, sub Pirata)
Homonym replaced:
Piratula exigua (Tanaka, 1974) -- see Piratula tanakai Brignoli, 1983 Brignoli, 1983c