Monomacrodon, Cushman, 1934

Konishi, Kazuhiko, Chen, Hsuan-Pu & Pham, Nhi Thi, 2022, A taxonomic review of the genus Netelia, subgenus Monomacrodon (Hymenoptera: Ichneumonidae: Tryphoninae), with description of a new species, Raffles Bulletin of Zoology 70, pp. 376-384 : 378

Key to species of Monomacrodon (modified from

Gauld, 1983)

1. Mesopleuron smooth and polished; occipital carina absent; upper valve of ovipositor ridged ( Brunei, Sabah, Papua New Guinea) ........................................ N. (M.) elumbis (Tosquinet)

– Mesopleuron coriaceous-rugulose or reticulate rugose, matt; occipital carina present; upper valve of ovipositor simple...... .................................................................................................2

2. Smaller species, fore wing length 6.4–8.0 mm; metasoma with 1st and 2nd tergites sometimes with black markings, 3rd and 4th tergites without darker markings and tergites 5+ entirely blackish brown; ovarian eggs 0.4–0.5 mm long, surface smooth dorsally and laterally, ventrally reticulate sculptured ( Brunei, Mainland China, India, Myanmar, Taiwan, Vietnam) ............. ....................................................... N. (M.) bicolor (Cushman)

– Larger species, fore wing length 9.0– 11.6 mm; all metasomal tergites with blackish brown markings, tergites 5+ largely yellowish white with brown markings; ovarian eggs 0.8 mm long, surface smooth dorsally, laterally and ventrally reticulate sculptured ( Laos, Vietnam)....................................................... ................................................. N. (M.) maculata , new species