Chelonus (Microchelonus) linzhiensis, Zhou & Achterberg & Tang & Chen, 2024

Zhou, Jin-Jin, Achterberg, Cornelis Van, Tang, Pu & Chen, Xue-Xin, 2024, A review of the subgenera Carinichelonus, Microchelonus, Parachelonus and Stylochelonus of the genus Chelonus Panzer (Braconidae: Cheloninae) with descriptions of twenty-one new species from China, Zootaxa 5412 (1), pp. 1-127 : 53-55

publication ID	https://doi.org/ 10.11646/zootaxa.5412.1.1
publication LSID	lsid:zoobank.org:pub:DB6DD20F-6EB7-4152-AC80-2F67EE06684B
DOI	https://doi.org/10.5281/zenodo.10676060
persistent identifier	https://treatment.plazi.org/id/2B5587AD-F03A-734F-FF39-6CADFBB6B9A8
treatment provided by	Plazi
scientific name	Chelonus (Microchelonus) linzhiensis
status	sp. nov.

Treatment

Chelonus (Microchelonus) linzhiensis sp. nov.

Figs 41–44 View FIGURE 41 View FIGURE 42 View FIGURE 43 View FIGURE 44

Material examined. Holotype: female, Linzhi , Xizang Prov., China, 2.VIII.2003, Dekyi Metok, No. 20034177 ( ZJUH) . Paratype: 1 male, same label data as holotype but No. 20035275 .

Diagnosis. This new species is similar to C. (M.) pectinophorae ( Cushman, 1931) , sharing the metasomal carapace being widest after middle and almost 2.0 × longer than wide in dorsal view ( Fig. 42E View FIGURE 42 ), and carapace distinctly widened posteriorly in lateral view ( Fig. 42C View FIGURE 42 ), but the two species can be separated by the following characters: legs partly blackish (versus mainly yellow in C. (M.) pectinophorae ); temples strongly narrowed behind eyes ( Fig. 42G View FIGURE 42 ) (versus slightly narrowed to widened); face coarsely and irregularly punctate-rugose medially ( Fig. 42F View FIGURE 42 ) (versus transversely punctate-rugose).

Description. Holotype, female, length of body 3.7 mm, of fore wing 2.6 mm.

Head. Head transverse, width of head 3.1 × its dorsal length, occiput strongly excavated; antennomeres 16, antenna filiform, not widened, length of 3 rd and penultimate antennomeres 2.7 × and 1.8 × their width, respectively ( Fig. 42H View FIGURE 42 ); eye in dorsal view 0.8 × longer than temple; OOL: OD: POL=21: 7: 13; temple distinctly narrowed behind eyes ( Fig. 42G View FIGURE 42 ); frons and vertex finely striate-rugulose ( Fig. 42G View FIGURE 42 ); face flat, coarsely irregular punctate-rugose medially, width of face 1.7 × its height; eyes slightly converging ventrally; clypeus densely punctate, 2.0 × wider than high, apical margin truncate medially, shiny; distance between tentorial pits 1.6 × distance between pits and eyes; clypeus extending below or far below lower level of eyes ( Fig. 42F View FIGURE 42 ).

Mesosoma. Length of mesosoma 1.5 × its height; side of pronotum finely punctate, mesopleuron densely setose ( Fig. 42B View FIGURE 42 ); notauli distinct, mesoscutum coarsely reticulate-rugose; scutellum evenly convex, rugulose medially, rugose laterally; scutellar suture comparatively deep, narrow, with carinae; propodeum coarsely rugose, lateral tubercles rather small (Fig. 424C).

Wings. Vein r straight; marginal cell 0.8 × as long as pterostigma; pterostigma 3.2 × longer than wide; r: 3-SR: SR1=14: 17: 45; SR1 curved towards pterostigma; marginal cell 1.2 × longer than second submarginal cell; 1-CU1: 2-CU1=18: 29; 2-R1 short ( Fig. 42A View FIGURE 42 ).

Legs. Hind coxa densely setose laterally, mainly smooth and shiny; length of hind femur and tibia 3.3 × and 5.0 × their maximum width, respectively; length of inner hind tibial spur 0.5 × hind basitarsus.

Metasoma. Length of carapace 1.9 × its maximum width in dorsal view, widest after middle, apically slightly narrowed; carapace rugose-reticulate, longitudinal elements less clear, but visible up to middle, rugose apically ( Fig. 42E View FIGURE 42 ); carapace in lateral view 2.3 × longer than high, posterior height of metasoma 1.9 × its anterior height, posteriorly rounded, carapace apically distinctly incurved ( Fig. 42D View FIGURE 42 ).

Colour. Body black; antenna black; palpi light brown; pterostigma dark brown; middle of wing and its veins dark brown, wing base and its veins light yellowish; legs partly black but hind tibia with wide pale yellowish ring; carapace with 2 large pale yellowish spots in basal 1/3, almost connected medially.

Male. Antennomeres 25, antenna filiform, not widened medially ( Fig. 44I View FIGURE 44 ); apical aperture in posterior view small, oval and median process of aperture horizontal oval ( Fig. 44F View FIGURE 44 ); other characters as in female.

Biology. Unknown.

Distribution. China (Xizang).

Etymology. Named after its type locality, a city in the southeast of Xizang (Tibet).