Campyloneurus pachypus Li & Achterberg & Chen 2020, sp. nov.
Creators: name: Li, Yang
name: Achterberg, Cornelis Van
name: Chen, Xue-Xin
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Campyloneurus
Campyloneurus pachypus

description: Campyloneurus pachypus sp. nov.
Figs 15–16
Type material. Holotype. CHINA • ♀; Hubei Province, Shennongjia Songbai; 19 Jul. 1997; Y.Z. Du leg.; ZJUH 975309. Paratype. CHINA • 1♀; Zhejiang Province, Tianmu Mt.; 20 Jul. 1987; X.X. Chen leg.; ZJUH 872042.
Diagnosis. This new species is very similar to C. brachyurus sp. nov., but can be separated from the latter by the following characters: third–fifth metasomal tergites uniformly blackish brown (third–fifth tergites with yellowish spots in C. brachyurus); antennal scape relatively robust, 1.3 × as long as its maximum width (2.3 ×); mesopleuron, metanotum and metapleuron blackish brown (reddish yellow); transverse subposterior groove of fifth metasomal tergite complete (absent medially).
Description. Holotype, ♀, length of body 6.6 mm, of fore wing 6.2 mm, of ovipositor sheath 1.3 mm.
Head. Antenna incomplete, with 44 antennomere remaining; first flagellomere 1.3 × longer than its maximum width, 1.1 and 1.2 × longer than second and third flagellomeres, respectively, the latter 1.2 × longer than wide; malar suture sparsely short setose, and with fine punctures (Fig. 16g); clypeus height: inter-tentorial distance: tentorioocular distance = 4: 9: 5; clypeus sparsely long setose; eye weakly emarginated (Fig. 16g); face 0.7 × longer than wide, largely smooth, with some punctures and long setae (Fig. 16g); eye height: shortest distance between eyes: head width = 19: 17: 37; frons smooth, concave behind antennal sockets, with a strong median groove (Fig. 16h); vertex largely glabrous except for a few short setae; minimum distance between posterior ocelli: minimum diameter of elliptical posterior ocellus: minimum distance between posterior ocellus and eye = 1: 1: 2; in dorsal view length of eye 2.1 × temple; temples directly narrowed behind eyes (Fig. 16h).
Mesosoma. Length of mesosoma 1.8 × its height (Fig. 16c); notauli impressed anteriorly only (Fig. 16d); mesoscutum largely glabrous, but with long setae along imaginary notaulic courses (Fig. 16d); scutellar sulcus deep and wide, crenulate (Fig. 16d); scutellum with dense short setae posteriorly; metanotum strongly convex medially, and with a short median carina anteriorly (Fig. 16d); propodeum largely smooth, but with a few short longitudinal carinae latero- and medio-posteriorly, sparsely setose medially, and densely long setose laterally (Fig. 16d).
Wings. Fore wing (Fig. 16a): SR1: 3-SR: r = 34: 23: 7; 1-SR+M bent after arising from 1-M; 2-SR: 3-SR: r-m = 11: 23: 9; angle between 1-SR and C+SC+R about 80°; r-m straight; cu-a interstitial. Hind wing (Fig. 16b): SC+R1: 2-SC+R: 1r-m = 18: 3: 10.
Legs. Length of fore femur: tibia: tarsus = 20: 24: 31; length of hind femur: tibia: basitarsus = 30: 40: 15; length of femur, tibia and basitarsus of hind leg 3.8, 6.9 and 5.0 × their maximum width, respectively; hind tibial spurs 0.3 and 0.4 × as long as hind basitarsus.
Metasoma. Length of first metasomal tergite 1.1 × its apical width, median area convex and coarsely sculptured, with a short medio-longitudinal carina posteriorly (Fig. 16j); first tergite with developed lateral carinae, lateral grooves strongly crenulate (Fig. 16j); second tergite largely coarsely sculptured, but smooth posteriorly (Fig. 16e); apical width of second tergite 1.9 × its median length, triangular medio-basal area of second tergite smooth, connected to some transverse carinae laterally, and attached to medio-longitudinal carina apically absent near posterior margin of second tergite; antero-lateral areas of second tergite smooth, anterior grooves wide and crenulate (Fig. 16e); second suture wide and deep, crenulate, straight medially (Fig. 16e); third–fifth tergites with antero-lateral areas, and shallow crenulate transverse subposterior groove but flat medially (complete on fifth tergite) (Fig. 16e); third–seventh tergites largely smooth except a few weak punctures; ovipositor sheath 0.2 × as long as fore wing.
Colour. Head and mesosoma largely reddish yellow (Fig. 15); antenna, eyes and apex of mandible blackish brown (Fig. 16g); mesopleuron, metapleuron, metanotum and propodeum black (Figs 16c, 16d); fore legs yellowish brown, middle and hind legs blackish brown (Fig. 16f); metasomal tergites black, but sixth and seventh tergites ivory (Figs 16e, 16j); wing membrane infuscate, pterostigma and veins yellowish brown (Figs 16a, 16b); ovipositor sheath black (Fig. 15).
Variation. Length of body of female 6.4–6.6 mm, and of ovipositor sheath 1.1–1.3 mm; antenna of one female with 53 antennomeres, its apical flagellomere acute and 2.5 × longer than wide.
Biology. Unknown.
Distribution. China (Hubei, Zhejiang).
Etymology. Named after the relatively robust scapus: “pachys” is Greek for “thick”.
description: Published as part of Li, Yang, Achterberg, Cornelis Van & Chen, Xue-Xin, 2020, Two genera Campyloneurus Szépligeti and Iphiaulax Foerster in China, with the descriptions of fourteen new species (Hymenoptera, Braconidae, Braconinae), pp. 1-67 in Zootaxa 4884 (1) on pages 25-27, DOI: 10.11646/zootaxa.4884.1.1, http://zenodo.org/record/4296207