Strebrocera (Eutanycerus) opima Chou 1990

Strebrocera (Eutanycerus) opima Chou, 1990. Type: “?”, ♀ (TARI) Streblocera (Cosmophoridia) opima Chou, 1990: 101. Streblocera (Eutanycerus) opima; Chen and van Achterberg, 1997: 118. Streblocera (Eutanycerus) opima; Li et al., 2020: 704. Diagnostic characters (based on the original description). Antenna with 21–24 antennomeres; scapus without horn basally, 7.5–7.8 × as long as its maximum width; seventh flagellomere geniculate; first to seventh flagellomeres straight ventrally; first flagellomere 1.4 × as long as second flagellomere (see Fig. 11A in Li et al. 2020); lateral lobes of mesoscutum densely setose anteriorly; propodeum with basal carina; Notes. This species was described by Chou (1990) under subgenus Cosmophoridia, Chen & van Achterberg (1997) transferred into subbgenus Eutanycerus, then keyed by Chen & van Achterberg (1997) and Li et al. (2020). Here we provide distinguishable characters of the species in the key and in-country distribution of the species. Distribution. NC Vietnam: Ha Tinh province (Figure 21). Outside Vietnam known from Taiwan.