Mezira pygmaea Hsiao 1964

Mezira pygmaea Hsiao, 1964 (Fig. 4C–D) Material examined. South Korea. Jeju-do: 1 ♀, Seogwipo-si, Andeok-myeon, Hwasoon Gotjawal, 21.v.2017, leg. Jinbae Seung (SNU); 1 ♀, Jeju-si, Jocheon-eup, Gyorae Natural Recreation Forest (33.439092, 126.670338), 12.vi.2022, leg. Wonwoong Kim (SCNU). Distribution. Korea (Jeju Island), China (Yunnan) (Hsiao 1964a), Japan (Honshu, Shikoku, Nansei Islands) (Nagashima & Shono 2012). Comments. This species was originally described based on specimens collected in Yunnan, China (a holotype male, an allotype female and 2 female paratypes). The species was later reported from Southern Japan by Nagashima & Shono (2012). Here we confirm this species from Jeju Island based on two female specimens. The Korean specimens generally fit the description of Hsiao (1964a) and key out to M. pygmaea by using available keys of Kormilev & Heiss (1973) and Liu (1981) for Oriental / Chinese Mezira Amyot & Serville, 1843. However, despite their smaller size (~7.0 mm), the basal 3 antennal segments combined are slightly longer than the length of the pronotum. Due to the general scarcity of the material, we could not confidently assure the identification at the current moment. Since the Korean specimens well match with the figures in Nagashima & Shono (2012), we follow their identification. Future studies are needed to clarify the identity of the species found in Korea.