Genus: Phytoseius Ribaga, 1904
Phytoseius Ribaga, 1904: 177 .
Type species Gamasus plumifer Canestrini & Fanzago, 1876: 130, designated by Vitzthum, 1941.
Phytoseius (Dubininellus) Wainstein, 1959: 1361 .
Type species Phytoseius (Dubininellus) corniger Wainstein, 1959: 1361, by original designation.
Chant & McMurtry (1994) recognised three species groups based on presence or absence of setae J2 and R 1: the horridus species group, Denmark (1966) with setae J2 and R 1 absent, the plumifer species group Chant & Yoshida- Shaul (1992) characterised with setae J2 and R 1 present, and purseglovei species group Chant & Yoshida-Shaul (1992) with seta J2 absent and R 1 present. Both the new species P. clavus and P. aonlae belong to horridus species group with setae J2 and R 1 absent, ventral setal pattern JV-3, 4: ZV (Chant & McMurtry 1994).