Enicospilus tripartitus Chiu, 1954 Figure 49

Enicospilus tripartitus Chiu, 1954: 36; HT ♀ from Taiwan, TARI, examined.

Specimens examined.

Total of 67 specimens (39♀♀26♂♂ and 2 unsexed): China (1♀), India (1♂), Japan (12♀♀14♂♂ and 1 unsexed), Nepal (24♀♀8♂♂ and 1 unsexed), Taiwan (2♀♀), unknown (3♂♂).

Type series: HT ♀ of Enicospilus tripartitus Chiu, 1954, Taihoku, TAIWAN, 27.VIII.1937, J. Sonan leg. (TARI); PT ♂ of E. tripartitus, no data (NHMUK).

Distribution.

Eastern Palaearctic and Oriental regions (Yu et al. 2016).

JAPAN: [ Tôhoku] Miyagi*; [Hokuriku] Niigata* and Ishikawa*; [ Kantô-Kôshin] Kanagawa*; [ Tôkai] Shizuoka*, Aichi*, and Mie*; [ Chûgoku] Shimane* and Hiroshima (Maeto and Shimizu 2019; present study); [Shikoku] Tokushima* and Kôchi *; [ Kyûshû] Ōita (Chiu 1954); [ Ryûkyûs] Kagoshima* and Okinawa (Chiu 1954; Shimizu 2020; present study). *New records.

Bionomics.

Unknown.

Differential diagnosis.

This species resembles E. laqueatus, E. pseudantennatus, and E. vestigator in the shapes of the sclerites, but can easily be distinguished by the dense and stout setae and punctures of the outer mandibular surface (Fig. 49B, D), deep basal concavity of the outer mandibular surface (Fig. 49B, D), etc., as summarised in Table 6.