Table 1.

Four Pieris butterflies and their main host plant genera in Japan.

Species	Major Brassicaceae host	Reference
Pieris melete	Arabis Cardamine Orychophragmus Rorippa	Ohsaki & Sato (1994) Kitahara (2016) unpublished data
Pieris napi	Arabidopsis Arabis Cardamine Rorippa	Ohsaki & Sato (1994) Kitahara (2016) unpublished data
Pieris rapae	Brassica Rhaphanus Rorippa	Ohsaki & Sato (1994) unpublished data
Pieris brassicae	Armoracia Brassica	Ueno (1996)