Chelonus (Parachelonus) hirsutus Zhou & Achterberg & Tang & Chen 2024, sp. nov.
Creators: name: Zhou, Jin-Jin
name: Achterberg, Cornelis Van
name: Tang, Pu
name: Chen, Xue-Xin
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Chelonus
Chelonus hirsutus

description: Chelonus (Parachelonus) hirsutus sp. nov.
Figs 93–96
Material examined. Holotype: female, Lingyuan, Liaoning Prov., China, 8.VIII.2002, Yiping Wang, No. 200607033 (ZJUH). Paratypes: 2 males, same label data as holotype, but Nos. 200607030, 200607031; 1 female, id., but No. 200607302; 4 males, Weizigou, Liaoning Prov., China, 16.VIII.2002, Yiping Wang, Nos..200607035, 200607036, 200607037, 200607038; 1 male, Kazuo County, Liaoning Prov., China, 7.VIII.2002, Yiping Wang, No. 200606997; 1 male, Fanjing Mt., Guizhou Prov., China, 3.VIII.2001, Xuexin Chen, No. 200606991
Diagnosis. This new species is similar to the female of C. (P.) pellucens (Nees, 1816), because both have metasomal carapace widest at middle and apically slightly narrowed (Fig. 94E), but can be separated by the following characters: scutellum densely punctulate (Fig. 94C) (versus smooth in C. (P.) pellucens); hind femur 3.4 × longer than wide (versus 2.6 × width) and carapace with yellowish irregular-edged band in basal 1/4, and its corners light (Fig. 94E) (versus usually black, sometimes with pair of large reddish or yellowish latero-basal spots).
Description. Holotype, female, length of body 5.0 mm, of fore wing 3.4 mm.
Head. Head transverse, width of head 1.9 × its dorsal length; occiput hardly excavated; antennomeres 27, antenna slightly widened medially, length of 3 rd and penultimate antennomeres 3.8 × and 1.5 × their width, respectively (Fig. 94H); eye 1.4 × as long as temple in dorsal view; OOL: OD: POL=19: 5: 12; temple narrowed to parallel-sided behind eyes; frons and vertex striate-rugose (Fig. 94G); face flat, irregular punctate-rugose, width of face 1.8 × its height; eyes about parallel; clypeus densely punctulate, interspaces shiny, 1.5 × wider than high, distance between tentorial pits 1.2 × distance between pits and eyes (Fig. 94F).
Mesosoma. Length of mesosoma 1.5 × its height in lateral view; side of pronotum reticulate-rugose, mesopleuron densely setose (Fig. 94B); notauli slightly distinct; anterior sclerite of mesoscutum dense punctulate and posterior part of mesoscutum coarsely reticulate-rugose, scutellum slightly convex, punctate and shiny; scutellar suture comparatively deep and with carinae; propodeum coarsely rugose, tubercles distinct (Fig. 94C).
Wings. Vein r somewhat arched; marginal cell 0.9 × as long as pterostigma; pterostigma 3.4 × longer than wide; r: 3-SR: SR1=9: 12: 40; SR1 curved towards pterostigma; marginal cell 1.4 × longer than second submarginal cell; 1-CU1: 2-CU1=15: 26; 2-R1 short (Fig. 94A).
Legs. Hind coxa punctate laterally and densely setose; length of hind femur, tibia and basitarsus 2.2 ×, 5.8 × and 5.8 × their maximum width, respectively; length of inner hind tibial spur 0.5 × hind basitarsus.
Metasoma. Length of carapace 2.0 × its maximum width, widest at middle, apically slightly narrowed; basal 0.7 of carapace reticulate-rugose and coriaceous apically (Fig. 94E); carapace in lateral view 2.9 × longer than high, posterior height of metasoma 1.8 × its anterior height, carapace apically slightly incurved (Fig. 94D).
Colour. Black; antenna brown; mandible light brown; palpi light brown; pterostigma brown; middle of wing and its veins medium light brown, wing base and its veins light yellowish; carapace with yellowish irregular-edged band in basal 1/4, and its corners light.
Male. Antennomeres 30, antenna filiform, not widened medially (Fig. 96I); carapace apically distinctly incurved (Fig. 96D); apical aperture in posterior view medium-sized, oval and median process of aperture horizontal, nearly round (Fig. 96F); carapace with 2 large spots in basal 1/3; other characters as in female (Fig. 95).
Biology. Unknown.
Distribution. China (Guizhou, Liaoning).
Etymology. Named after its densely setose mesopleuron, “ hirsutus ” is Latin for bristly, hairy.
description: Published as part of 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, pp. 1-127 in Zootaxa 5412 (1) on pages 105-107, DOI: 10.11646/zootaxa.5412.1.1, http://zenodo.org/record/10675974