Teranishia crenulata Chen, van Achterberg & He

Holotype, female, length of body 6.9 mm (of fore wing 5.2 mm). Head. Antenna with 23 segments; frons densely and finely punctate; vertex sparsely and finely punctate and becoming smooth posteriorly (Fig. 595); temple largely smooth with sparse fine punctures; head subparallel-sided behind eyes, eye in dorsal view 0.9 times as long as temple (Fig. 595); occipital carina strongly developed and finely crenulate dorsally (Fig. 595); supra-antennal elevations strongly enlarged (about 0.7 times as long as scapus), outer side subvertical and largely smooth except for sparse punctures (Fig. 595); clypeus slightly concave and thick medio-ventrally. Mesosoma. Length of mesosoma 1.6 times its height (Fig. 600); mesopleuron below transverse mesopleural groove coarsely rugose antero-dorsally, smooth ventrally and transversely striate postero-dorsally, above groove coarsely rugose anteriorly and smooth posteriorly; transverse mesopleural groove wide, deep and coarsely crenulate; notauli wide, deep and coarsely crenulate; mesoscutum densely punctate rugose, lateral lobe with a narrow smooth mid-longitudinal line (Fig. 599); scutellar sulcus wide, both medially and laterally and coarsely crenulate; scutellum densely rugose and anteriorly near level of scutellum (Fig. 599); metanotum medially protruding, obtuse and rugose (Fig. 599); propodeum irregularly areolate (Fig. 599); posterior propodeal carina thick lamelliform and slightly arched, foramen medially 0.5 times higher than wide basally. Wings. Fore wing: length of vein 1-M 2.4 times as long as vein 1-SR (Fig. 597). Metasoma. First tergite 0.7 times as long as apically wide, smooth and without depression antero-medially (Fig. 601); other tergites and sternites smooth to superficially coriaceous and shiny (Figs 601, 603); third sternite about 0.7 times as long as second sternite (Fig. 603); hypopygium triangular in ventral view (Fig. 603). Colour. Black; malar space brownish; postero-lateral margin of first tergite and sternite, second and third tergites and sternites largely reddish-yellow; palpi dark brown; mandible with large basal ivory spot, otherwise orange-brown to dark brown; antenna black with a small ivory band subapically; apex of fore femur, tibia and tarsus, ventral side of mid and hind tibiae yellowish brown, remainder of legs dark brown to black; pterostigma dark brown; wing membrane subhyaline. Male. Length of body 6.2–10.2 mm, of fore wing 5.1–8.1 mm; antenna with 23 (2), 24 (2) or 25 (2) segments; frons densely and coarsely punctate; vertex densely and finely punctate; frons with ivory stripes along inner orbita; dorsal half of clypeus ivory; colour of metasoma similar to female or darker; genitalia extruded.

China (Ningxia, Gansu, Sichuan).