Rilipertus zhongnanshanius Li, 2020

Li, Jun, Zheng, Min-Lin & Chen, Jia-Hua, 2020, First record of Rilipertus Haeselbarth (Hymenoptera: Braconidae: Euphorinae) from China with description of a new species, Zootaxa 4851 (1), pp. 198-200 : 198-200

Rilipertus zhongnanshanius Li , sp. nov. Figs1–9

Type material. Holotype, ♀, C China, Hubei Province, Shennongjia, 26.viii.2000, Huang juchang.

Description. Holotype, ♀, length of fore wing 2.8 mm, and of body 3.4 mm.

Head. Antenna with 30 antennomeres and 1.1 × as long as fore wing, 0.8 × as long as body, first flagellomere 1.1 × as long as second flagellomere, first, second and penultimate flagellomere 3.5, 3.3 and 1.6 × as long as wide, respectively ( Fig. 5 ); eye 2.1 × as long as temple in dorsal view; temples strongly roundly narrowed behind eyes ( Fig. 3 ); ocelli medium size, in triangle with base 1.3 × its lateral sides, between posterior ocellus with a small groove, OOL:OD:POL = 7:6:11 ( Fig. 3 ); frons almost flat, vertex and frons largely smooth; occipital carina complete and dorsally weak ( Fig. 3 ); face wider than high, slightly convex, sparsely setose, nearly granulate, finely transversely rugulose ( Fig. 3 ); clypeus smooth, narrower than face, convex medially ( Fig. 3 ); anterior tentorial pits large ( Fig. 3 ); malar suture deep, wide and rather short, length of malar space 0.6 × basal width of mandible ( Fig. 3 ); mandibles stout and twisted ( Fig. 3 ). Mesosoma . Length of mesosoma 1.2× its height; side of pronotum crenulated medially, with sinuate rugae ( Fig. 7 ); propleuron smooth ( Fig.7 ); mesopleuron ventrally largely smooth ( Fig. 7 ); prepectal carina completely present ( Fig. 7 ); episternal scrobe linear, long and shallow ( Fig. 7 ); precoxal sulcus deep and wide ( Fig. 7 ); mesonotum moderately setose, convex, coriaceous and shiny; notauli deep and narrow, finely crenulated, mesoscutum sparsely setose, flattened, moderately shiny ( Fig. 6 ); scutellar sulcus smooth and shallow with 1 crenula ( Fig. 6 ); scutellum flat, smooth ( Fig. 6 ); metapleuron coriaceous-rugulose ( Fig. 7 ); propodeum rectangularly depressed medially, largely smooth. Wings. Fore wing ( Fig. 9 ): 1-SR+M absent; 1-R1 0.7 × as long as pterostigma( Fig. 9 ); SR1+3-SR finely curved; r:2-SR = 2:5; vein r issued from middle of pterostigma; 1-CU1 robust and oblique; cu-a oblique and distinctly longer than 1-CU1; 1-CU1:2-CU1 = 1:5; basal and subbasal cells of fore wing similarly setose as other cells. Hind wing: M+CU:1-M:1r-m = 35:9:14. Legs. Fore leg normal, tibia 4.8× as long as coxa, 1.1× as long as femur; middle leg normal, tibia 5.0× as long as coxa, 1.2× as long as femur; hind legs lost. Metasoma. First tergite 4.5× longer than its maximum width, apical width 1.8× as long as its minimum width, with small spiracular tubercles behind middle, basal half with concave sides and laterope partly visible, without dorsope ( Fig. 8 ); first tergite open ventrally and laterope narrow ( Fig. 7 ), remaining segments smooth, compressed and shiny, third–eighth tergites concave medio-apically; hypopygium medium-sized, sparsely setose; ovipositor short, apically slightly curved; ovipositor sheaths 0.7× as long as the apical height of the metasoma, 0.3× as long as first metasomal tergite, widened in apical half and regularly round apically covered with long hairs, finely striate except broadened part ( Fig. 2 ). Colour. Yellowish-brown to dark brown; palpi yellow; pterostigma and most veins of fore wing, metasoma (except first tergite), ovipositor sheaths except broadened part brown; antenna (after fourth antennomere), mesonotum, first metasomal tergite, broadened part of ovipositor sheaths dark brown.

Remarks. This new species can be distinguished from other species by its unique combination of 30 antennomeres, the absence of vein 1-SR+M of fore wing, medium size ocelli, the structure and color of ovipositor sheaths.

Biology. Unknown.

Distribution. China (Palaearctic).

Etymology. Named after the Chinese medical scientist nan-shan Zhong for his on-going efforts to fighting CO- VID2019.

Figures

FIGURES 1–9. Rilipertus zhongnanshanius sp. nov., ♀, holotype. 1. Habitus, lateral aspect; 2. Ovipositor and its sheath, lateral aspect; 3. Head, dorsal aspect; 4. Head, anterior aspect; 5. Antenna; 6. Mesosoma, dorsal aspect; 7. Mesosoma, lateral aspect; 8. first metasomal tergites, dorsal aspect; 9. fore wing.