Key to subfamilies, tribes and genera of the Phytoseiidae in Japan (females) 1. Setae z3 and s6 absent (with four prolateral setae)............ Amblyseiinae Muma, 1961 ....................... 8 - Either or both setae z3 and s6 present (with more than four prolaterals)........................................ 2 2. Setae Z1, S2, S4, S5 absent............ Phytoseiinae Berlese, 1913 ...................... Phytoseius Ribaga, 1904 - At least one of setae Z1, S2, S4 or S5 present............ Typhlodrominae Scheuten, 1857 ...................... 3 3. Seta s6 absent............ Chanteiini Chant & McMurtry, 1994 ............... Chanteius contiguus (Chant, 1959) - Seta s6 present.................................................................................... 4 4. Seta z6 present............ Paraseiulini Wainstein, 1976 ................................................. 7 - Seta z6 absent..................................................................................... 5 5. Setae S4 and JV4 present............ Typhlodromini Wainstein, 1962 .............. Typhlodromus Scheuten, 1857 - Setae S4 and JV4 absent............ Metaseiulini Chant & McMurtry, 1994 .................................. 6 6. Seta R1 absent; seta S2 present.................................. Galendromus (G.) occidentalis (Nesbitt, 1951) - Seta R1 present; seta S2 absent..................................... Typhlodromina conspicua (Garman, 1948) 7. Seta JV2 absent....................................................... Paraseiulus soleiger (Ribaga, 1902) - Seta JV2 present............................................ Kuzinellus yokogawae (Ehara & Hamaoka, 1980) 8. Peritremal shield not fused anteriorly with dorsal shield............ Indoseiulini Ehara & Amano, 1998 ...................................................................................... Gynaeseius Wainstein, 1962 - Peritremal shield fused anteriorly with dorsal shield....................................................... 9 9. Sternal shield with median posterior projection; pre-anal setae JV2 and ZV2 migrated forward............ Euseiini Chant & McMurtry, 2005a ............................................................................... 20 - Sternal shield without posterior projection; without forward migration of pre-anal setae JV2 and ZV2 .............. 10 10. Seta S4 absent.................................................................................... 14 - Seta S4 present................................................................................... 11 11. Ratio seta s4: Z1> 3:1; setae s4, Z4 and usually Z5 distinctly longer than other dorsal setae; seta J2 present/absent............ Amblyseiini Muma, 1961 ...................................................................... 17 - Ratio seta s4: Z1 3:1........................................................... Amblyseius Berlese, 1914 20. Chelicerae normal in size and shape, with teeth evenly distributed along fixed digit; peritremes usually extending to level of seta j1............................................ Amblydromalus limonicus (Garman & McGregor, 1956) - Chelicerae reduced in size, with a group of teeth clustered at distal end of fixed digit; peritremes usually not extending beyond setae j3................................................................................... 21 21. Ventrianal shield divided into separate ventral and anal shields................. Iphiseius degenerans (Berlese, 1889) - Ventrianal shield entire........................................................... Euseius Wainstein, 1962

Published as part of Negm, Mohamed W., Toyoshima, Shingo, Kishimoto, Hidenari & Amano, Hiroshi, 2026, Phytoseiid mites of Japan (Acari: Mesostigmata), pp. 51-85 in Zootaxa 5782 (1) on pages 74-75, DOI: 10.11646/zootaxa.5782.1.3, http://zenodo.org/record/19181174