Brachynervus, Uchida, 1955

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 : 132

Key to species of the genus Brachynervus from South Korea

1. Clypeal apical margin round, without notch ( Fig. 2A & 2B). Mesoscutum entirely black in dorsal view ( Fig. 2D) ························································ B. beijingensis

- Clypeal apical margin with a median notch ( Fig. 3B ). Mesoscutum with yellow stripes or apots in dorsal view ( Fig. 3D )····························································· 2

2. Mesoscutum with yellow spots on lateral lobs ( Fig. 3D). Second discal cell irregularly pentagonal ( Fig. 3H) ····························································· B. confusus

- Mesoscutum with four longitudinal yellow stripes and entirely apically. Second discal cell regularly pentagonal ································································ B. tsunekii

Figures

Fig. 2. Brachynervus beijingensis Wang, 1983. A. Head in frontal view (male); B. Head in frontal view (female); C. Head and mesosoma in lateral view; D. Head and mesosoma in dorsal view; E. Wings; F. Mesosoma in ventral view. Scale bars: A, B, 0.5 mm; C, D, F, 1 mm; E, 2 mm.

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.