Neopius citrinus Sheng & Chen, 2019

Han, Yunjong, van Achterberg, Cornelis & Kim, Hyojoong, 2024, Four genera of the subfamily Opiinae Blanchard (Hymenoptera, Braconidae) new for Japan, with the description of two new species, ZooKeys 1206, pp. 207-229 : 207-229

Neopius citrinus Sheng & Chen, 2019

Figs 26 , 27–36

Neopius citrinus Sheng & Chen, 2019: 592–595.

Material.

1 ♀ ( OMNH), “ Japan (Honshu): Nakaikemi Wetlands, Kashimagari, Tsuruga, Fukui, 35.6594 ° N, 136.0884 ° E, 24. v. – 17. vi. 2016, MT [= Malaise trap], Asato Noishiki leg., OMNH ”.

Diagnosis.

Face yellow (Fig. 31 ); notauli nearly complete, gradually reduced posteriorly; occiput comparatively straight in dorsal view (Fig. 32 ); head largely granulate; scutellar sulcus comparatively robust (Fig. 29 ); propodeum reticulate-rugose with a medio-longitudinal carina; second and third tergites granulate.

Re-description.

Female; length of body 2.8 mm, of fore wing 3.0 mm.

Head. Antenna with 29 segments (Fig. 25 ; broken and lost); third segment 2.3 × longer than its width, 1.2 × longer than fourth segment; eye 1.5 × longer than temple in dorsal view (Fig. 23 ); vertex granulate and sparsely setose; frons and occiput shiny and granulate; face densely punctate and setose (Fig. 21 ); clypeus 2.5 × wider than its maximum height; clypeus densely setose, its ventral margin slightly protruding downward; hypoclypeal depression distinct; maxillary palpi nearly 0.7 × as long as height of head; malar sulcus absent; occipital carina completely present and crenulate, (Figs 29 , 32 ); mandible gradually widened basally, moderately setose and hardly twisted in lateral view without acute basal lamella (Fig. 33 ).

Mesosoma. Mesosoma 1.3 × longer than its height (Fig. 29 ); pronope absent but transverse crenulated groove and sparsely setose along lateral margin (Fig. 30 ); pronotal side granulate with ventral crenulated groove; propleuron granulate (Fig. 29 ); mesopleuron largely coriaceous, but precoxal sulcus crenulate, wide, oblique and reaching anterior area (converging epicnemial area and dorsal crenulate carina); epicnemial area crenulate; mesopleural sulcus crenulate; mesosternum densely setose; anterior groove of metapleuron crenulate, remaining area reticulate-rugose, shiny and densely setose; notauli distinctly crenulate antero-medially, but gradually obsolescent posteriorly (Fig. 29 ); medio-posterior depression of mesoscutum large, elliptical and deep; mesoscutum coriaceous with few setae along the notaulic course; scutellar sulcus medium-sized, moderately crenulate and gradually narrowed laterally; scutellum granulate and rather flat in lateral view; propodeum entirely reticulate-rugose and densely setose with a short medio-longitudinal carina.

Wings. Fore wing (Fig. 27 ): Pterostigma triangular and gradually narrowed apically; vein r sublinear with vein 3 - SR; vein 1 - M nearly straight; vein 1 - SR + M straight; vein 2 - SR slightly sinuate and oblique; vein 3 - SR 1.5 × longer than vein 2 - SR; r: 3 - SR: SR 1 = 5: 18: 37; vein SR 1 straight; vein m-cu distinctly postfurcal; first subdiscal cell open; vein CU 1 b short and incomplete. Hind wing (Fig. 28 ): vein m-cu absent; vein 2 - M absent.

Legs. Length of hind femur 4.4 × its maximum width (Fig. 36 ).

Metasoma. First metasomal tergite 0.9 × as long as its apical width, its surface striate-rugose and slightly convex medio-basally in lateral view (Figs 26 , 30 ); dorsope absent; second metasomal suture obsolescent (Fig. 30 ); second tergite shiny and granulate, with shallow pair of depressions medio-basally; third tergite granulate medially and following tergites shiny and smooth, with band of setae posteriorly; setose part of ovipositor sheath 0.5 × longer than first tergite (Fig. 34 ).

Colour. Body generally black (Fig. 26 ); head yellowish-brown but frons and vertex black medially (Fig. 32 ); legs and ovipositor, light brown; second and half of basal third tergites, brown; pterostigma and vein of wings, light brown; wings, subhyaline.

Distribution.

Japan (Honshu; new record), China (Heilongjiang, Jilin and Liaoning).

Biology.

Unknown.

Figures

Figure 26. Neopius citrinus Sheng & Chen, ♀, Japan, habitus, lateral.

Figures 27–36. Neopius citrinus Sheng & Chen, ♀, Japan. 27 fore wing 28 mesosoma lateral 29 mesosoma dorsal 30 metasoma dorsal 31 head anterior 32 head dorsal 33 head lateral 34 ovipositor lateral 35 antenna 36 hind femur.

Figures 15–25. Indiopius chenae van Achterberg & Li, ♂, Japan. 15 wings 16 mesosoma lateral 17 mesosoma dorsal 18 propodeum and metasoma dorsal 19 head anterior 20 head dorsal 21 head lateral 22 propodeum dorsal 23 first metasomal tergite dorsal 24 antenna 25 base of antenna.