(Fig. 14)
Material examined. 1 ♀, Sokhonda mount., 18.VIII.2020.
Distribution. Russia (S RFE: SW * Sakhalin, S Kurils—Kunashir), Japan (Hokkaido, Honshu, Shikoku, Kyushu), south of North Korea, South Korea.
Remarks. The finding of Z. testacea in Sakhalin significantly expands its distribution range to the north. In Japan, the larvae feed on Celastrus orbiculatus (Celastraceae), near thickets of which this specimen was collected.