Streblocera (Eutanycerus) cornis Chen & van Achterberg 1997

Streblocera (Eutanycerus) cornis Chen & van Achterberg, 1997 Figure 19, 21 Examined material. ♀, labelled “Euph. 401 ” (IEBR), NE Vietnam: Lang Son, Huu Lung, Huu Lien NR, forest, MT, 21°39’4’’N 106°21’51’E, 200 m, 15.ii.2024, PQ Mai, TD Duong. Note. The single female specimen of S. (Eutanycerus) cornis from Vietnam has antenna with 24 antennomeres; scapus hardly expanded subapically, with a weak horn at basal 0.3 of scapus; length of scapus 7.6 × its maximum width; occipital carina incomplete dorso-medially (Fig. 19A); notauli narrower anteriorly, wider posteriorly and largely crenulate, divided by short carina (Fig. 19 C); propodeum with more or less developed areola (Fig. 19B); vein r issued from middle of pterostigma, and 0.5 × as long as width of pterostigma; first tergite 1.8 × longer than its apical width (Fig. 19D). Male. Unknown. Host: Unknown. Distribution. NE Vietnam: Lang Son province (Huu Lien NR) (Fig. 21).