Brachynervus confusus Gauld, 1976

Choi, Jin-Kyung, 2024, Taxonomic study of the genus Brachynervus Uchida (Hymenoptera: Ichneumonidae: Anomaloninae) from South Korea, Journal of Species Research 13 (2), pp. 131-135 : 134-135

Brachynervus confusus Gauld, 1976 ( Fig. 3 )

ĝêƎḏḡḣşffinjḍ (ṳḑ)

Brachynervus confusus Gauld, 1976: 1 - 135 . Type: female. Type depository: NHM.

Male. Color. Generally black and reddish brown ( Fig. 3A ). Face, temple and malar space yellow ( Fig. 3B ), mandible yellow except apical part black, frons black, without yellow triangular spots on behind eyes ( Fig. 3C ). Antennal scape yellow, flagellomeres yellow to brown. Mesosoma black ( Fig. 3G ), with yellow spot on the anterior parts of lateral lobs of mesoscutum ( Fig. 3D ). Tegular and scutellum yellow. Fore and mid legs yellow; hind leg brown, trochanter, trochantellus, and tarsus yellowish brown. Propodeum black with yellow spots on anterior and posterior areas ( Fig. 3E ). Metasoma brown to reddish brown.

Head: Face reticulated; inner orbits of eyes convergent toward below; frons with median longitudinal horn; distance of between lateral ocelli as long as the distance of between lateral ocellus and eye; diameter of lateral ocellus 1.71 times as long as the distance of between lateral ocelli; clypeus separated from face by a distinct deep groove. Mandible bidentate and twisted, lower tooth slightly shorter than upper tooth. Malar space 1.25 times as long as basal mandibular width. Occipital carina incomplete, occiput polished.

Mesosoma: Pronotum reticulate, with transverse striae on the ventral area. Mesoscutum reticulate, with weak notaulus line, median lob of between notauli with transverse striae. Propodeum reticulate, short and thick, without pleural carina and postpectal carina. Hind tarsomeres 20: 12.3: 9: 3.3: 6.3; tarsal claws simple and strongly curved ( Fig. 3F ). M&Rs (basal vein) opposite to 1Cu-a (nervulus); vein 2rs-m of fore wing far (approximately 8.3 times as long as 2rs-m) basad of 2m-cu; areolet absent ( Fig. 3H ).

Metasoma: Metasomal tergites compressed.

Material examined. [ South Korea] 1♂, Chungcheongnam-do, Seosan-si, Haemi-myeon, Daegok-ri, Hanseo Univ., 20.vii - 24.viii.2011, J.K. Choi (NNIBR-NNIBRIN 194912); 1♂, Gyeonggi-do, Namyangju-si, Mt. Bulam , 25.viii.1993, N.R. Kim ( DNUE _ IIEI) .

Distribution. South Korea (new record), China, India.

Region. Eastern Palaearctic, Oriental region.

Figures

Fig. 3. Brachynervus confusus Gauld, 1976. A. Habitus in lateral view; B. Head in frontal view; C. Frons median horn; D. Head and mesoscutum in dorsal view; E. Propodeum; F. Hind tarsal claw; G. Head and mesosoma in lateral view; H. Fore wing. Scale bars: A, 2 mm; B-E, G, H, 0.5 mm; F, 0.1 mm.