Occurrence of Trissolcus basalis (Hymenoptera, Platygastridae), an egg parasitoid of Nezara viridula (Hemiptera, Pentatomidae), in Japan

Trissolcus basalis (Wollaston), a cosmopolitan egg parasitoid of Nezara viridula (Linnaeus), was newly discovered in Central Honshu and Kyushu, Japan. The morphological characteristics useful to identify Tr. basalis from other species of Trissolcus occurring in Japan were indicated. Partial mitochondrial COI gene sequences of samples obtained from Aichi to Fukuoka Prefectures almost completely correspond to those obtained from overseas retrieved from the DDBJ/Genbank database. The sequence of Tr. basalis was different by 13–17 % from Trissolcus species compared and Telenomus turesis (Dalman). Further field research is needed to clarify the impact of Tr. basalis on local parasitoid guilds.