Streblocera (Streblocera) zoroi Li, Chen & van Achterberg, 2021

Li, Jun, Achterberg, Cornelis van, Zheng, Min-Lin & Chen, Jia-Hua, 2021, Revision of Streblocera Westwood (Hymenoptera, Braconidae, Euphorinae) from China, with the description of seven new species, ZooKeys 1044, pp. 729-782 : 729

Streblocera (Streblocera) zoroi Li, Chen & van Achterberg sp. nov. Figures 27A-C , 28D-J

Type material.

Holotype, ♀, C China, Hubei Province, Shenongjia, Muyu, 8. viii. 1988, Jianquan Yang, average altitude 1200m.

Description.

Holotype, ♀, length of antenna 2.2 mm, of fore wing longer than 2.6 mm, and of body 2.6 mm.

Head. Antenna with 18 antennomeres and 0.8 × as long as body (Fig. 27A ); scapus quite stout, slightly curved, weakly expanded and sparsely setose, 2.5 × longer than its maximum width, with two horns on basal half: lower horn twisted and upper one shark fin-shaped (Figs 27C , 28D ); first and second flagellomeres sparsely setose and modified: first flagellomere with a strong downwards and blunt hook apically, second flagellomere with hook apically and subbasally inserted on first flagellomere (Fig. 27C ); first flagellomere 2.0 × longer than second flagellomere, first, second and penultimate flagellomere 3.0, 2.0 and 1.8 × longer than wide, respectively (Fig. 27C ); eye 1.8 × longer than temple in dorsal view (Fig. 28E ); temples roundly narrowed behind eyes (Fig. 28E ); ocelli small, OOL:OD:POL = 67:9:16 (Fig. 28E ); frons and vertex smooth; occipital carina nearly complete present, narrowly interrupted medio-dorsally and convex dorsally (Fig. 28E ); face 2.5 × wider than high, smooth (Fig. 28D ); clypeus smooth, narrow than face, strongly convex, 2.7 × wider than high (Fig. 28D ); dorsal margin of clypeus distinct above level of ventral margin of eye anterior (Fig. 28D ); tentorial pits large (Fig. 28D ); malar suture narrow, length of malar space 1.3 × basal width of mandible (Fig. 28D ); mandibles slender (Fig. 28D ).

Mesosoma. Length of mesosoma 1.9 × its height (Fig. 28G ); side of pronotum crenulated anteriorly and medially, but largely smooth (Fig. 28G ); propleuron smooth and shiny (Fig. 28G ); mesopleuron smooth and shiny (Fig. 28G ); prepectal medio-ventral carina present (Fig. 28G ); episternal scrobe short and wide (Fig. 28G ); precoxal sulcus short, wide and crenulate (Fig. 28G ); mesonotum sparsely setose, flat, smooth and shiny (Fig. 28F ); notauli narrow, posteriorly crenulated; mesoscutum sparsely setose, flattened (Fig. 28F ); scutellar sulcus wide and smooth with one distinct crenula (Fig. 28F ); scutellum flat, smooth (Fig. 28F ); metapleuron largely rugose (Fig. 28G ); propodeum with short basal carina, largely rugose and, pentagon-shaped median area dorsally, laterally largely smooth (Fig. 28H ).

Wings. Fore wing (Fig. 28J ): vein 1-SR+M absent; vein 1-R1 0.7 × as long as pterostigma; vein SR1+3-SR curved; r:2-SR = 2:87; vein r issued slightly behind middle of pterostigma; vein m-cu cross vein 2-SR; vein cu-a nearly as long as vein 1-CU1 and postfurcal.

Legs. Fore leg: tibia 2.9 × longer than coxa, 0.8 × as long as femur, and femur flat, 3.6 × longer than wide; middle leg: tibia 3.7 × longer than coxa, 0.9 × as long as femur; hind leg: tibia 3.5 × longer than coxa, 1.1 × longer than femur; hind coxa smooth, 1.8 × longer than wide; hind femur, tibia and basitarsus 8.2, 11.6 and 6.6 × longer than wide, respectively; hind basitarsus 0.4 × as long as tibia; hind fourth tarsal segment 0.7 × as long as fifth tarsal segment.

Metasoma. First tergite quite robust, 1.3 × longer than its apical width, and apical width 2.3 × its minimum width, with large dorsope and laterope basally (Fig. 28I ); first tergite basally smooth, finely striate laterally (Fig. 28I ); following tergites smooth and shiny; ovipositor sheath and ovipositor short and curved upwards (Fig. 27B ).

Colour. Yellowish brown to dark brown; palpi pale and legs yellowish brown; head, ovipositor sheath and ovipositor brown; antenna brown, but its basal two segments yellowish brown; wing membrane slightly infuscate, pterostigma and veins brown; body dorsally dark brown.

Remarks.

This new species is distinguished from related species by its combination of 18 antennomeres, scapus with two specialized horns, first and second flagellomere modified and occipital carina narrowly interrupted medio-dorsally.

Biology.

Unknown.

Distribution.

Palaearctic: China (Hubei).

Etymology.

The species is named after the virtual character Roronoa Zoro, who is a great swordsman in the Japanese animation "One Piece". The scapus and the first flagellomere of the new species form three catch structures similar to the three swords of Zoro.

Figures

Figure 27. Streblocera (Streblocera) zoroi Li, Chen and van Achterberg, sp. nov., ♀ A habitus, lateral aspect B ovipositor and its sheath, lateral aspect C antenna.

Figure 28. Streblocera (Streblocera) zoroi Li, Chen and van Achterberg, sp. nov., ♀ D head, dorsal aspect E head, anterior aspect F mesosoma, dorsal aspect G mesosoma, lateral aspect H propodeum, dorsal aspect I first metasomal tergites, dorsal aspect J fore wing.