Campyloneurus nigriventris, Li & Achterberg & Chen, 2020

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), Zootaxa 4884 (1), pp. 1-67 : 22-25

publication ID	https://doi.org/ 10.11646/zootaxa.4884.1.1
publication LSID	lsid:zoobank.org:pub:84551E26-49DE-4904-AC7B-69BF1C3CB24D
DOI	https://doi.org/10.5281/zenodo.4337284
persistent identifier	https://treatment.plazi.org/id/EE15879A-184B-FFB0-FF7E-E7F3FE1EFEA3
treatment provided by	Plazi
scientific name	Campyloneurus nigriventris
status	sp. nov.

Treatment

Campyloneurus nigriventris sp. nov.

Figs 13–14 View FIGURE 13 View FIGURE 14

Type material. Holotype. CHINA • ♀; Yunnan Province, Ruili Mengxiu ; 2 to 6 May 1981; J.H. He leg.; ZJUH 813089 . Paratypes. CHINA • 1♀; Yunnan Province, Xishuangbanna Yunjinghong ; 650m; 5 Aug. 1959; X.Z. Zhang leg.; IZCAS IOZ (E) 1964630 • 1♀; ibid.; but from Damenglong; 650m; 8 Apr. 1958, Y. R. Zhang leg.; IZCAS IOZ (E) 1964579.

Diagnosis. This new species is very similar to C. latesuturalis Turner, 1919 , but can be separated from the latter by the following characters: median length of second metasomal tergite distinctly less than its basal width (median length equal to its basal width in C. latesuturalis ); scutellum black (reddish brown); fourth and fifth metasomal tergites with longitudinal striae (coarsely punctate); second metasomal tergite with medio-basal triangular area sculptured (smooth); vein 3-SR of fore wing 0.7 × as long as vein SR1 (both of approximately equal length).

Description. Holotype, ♀, length of body 9.0 mm, of fore wing 8.4 mm, of ovipositor sheath 5.3 mm.

Head. Antenna with 47 antennomeres; apical flagellomere acute and protruding apically, 2.1 × longer than its maximum width ( Fig. 14l View FIGURE 14 ); first flagellomere 1.5 × longer than its maximum width, 1.1 and 1.2 × longer than second and third flagellomeres, respectively, latter 1.2 × longer than wide; malar suture densely short setose, and sculptured ( Fig. 14i View FIGURE 14 ); clypeus height: inter-tentorial distance: tentorio-ocular distance = 4: 10: 7; clypeus sparsely long setose; eye weakly emarginated ( Fig. 14g View FIGURE 14 ); face 0.9 × longer than wide, densely long setose, and coarsely sculptured ( Fig. 14g View FIGURE 14 ); eye height: shortest distance between eyes: head width = 10: 9: 19; frons largely smooth, concave behind antennal sockets, with a strong median groove ( Fig. 14h View FIGURE 14 ); vertex smooth, with sparse short setae; shortest distance between posterior ocelli: narrower diameter of elliptical posterior ocellus: shortest distance between posterior ocellus and eye = 4: 5: 12; in dorsal view length of eye 1.3 × temple; temples weakly narrowed behind eyes ( Fig. 14h View FIGURE 14 ).

Mesosoma. Length of mesosoma 1.6 × its height ( Fig. 14c View FIGURE 14 ); notauli impressed only anteriorly ( Fig. 14d View FIGURE 14 ); mesoscutum sparsely setose ( Fig. 10d View FIGURE 10 ); scutellar sulcus deep and with crenulae ( Fig. 14d View FIGURE 14 ); scutellum densely short setose; metanotum strongly convex medially, and with a short median carina anteriorly ( Fig. 14d View FIGURE 14 ); propodeum largely smooth, but with a few short longitudinal carinae latero- and medio-posteriorly, sparsely setose medially, and densely long setose laterally ( Fig. 14d View FIGURE 14 ).

Wings. Fore wing ( Fig. 14a View FIGURE 14 ): SR1: 3-SR: r = 43: 28: 4; 1-SR+M strongly bent after arising from 1-M; 2-SR: 3SR: r-m = 12: 28: 9; angle between 1-SR and C+SC+R about 85°; r-m rather weakly curved; cu-a weakly postfurcal. Hind wing ( Fig. 14b View FIGURE 14 ): SC+R1: 2-SC+R: 1r-m = 20: 6: 11.

Legs. Length of fore femur: tibia: tarsus = 27: 34: 39; length of hind femur: tibia: basitarsus = 41: 65: 26; length of femur, tibia and basitarsus of hind leg 5.0, 8.5 and 6.7 × their maximum width, respectively; hind tibial spurs 0.3 and 0.4 × as long as hind basitarsus.

Metasoma. Metasomal tergites largely strongly sculptured ( Fig. 14e View FIGURE 14 ); length of first tergite 0.9 × its apical width, median area convex and with a branched medio-longitudinal carina ( Fig. 14j View FIGURE 14 ); first tergite with developed lateral carinae, lateral grooves shallow and crenulate ( Fig. 14j View FIGURE 14 ); apical width of second tergite twice its median length, triangular medio-basal area of second tergite weakly rugose, attached to medio-longitudinal carina absent near posterior margin of second tergite; antero-lateral areas of second tergite absent, anterior grooves deep and crenulate ( Fig. 14e View FIGURE 14 ); second suture wide and deep, crenulate, weakly curved medially ( Fig. 14e View FIGURE 14 ); third–fifth tergites with weak antero-lateral areas, and crenulate transverse subposterior groove ( Fig. 14e View FIGURE 14 ); sixth and seventh tergites largely smooth; ovipositor sheath 0.6 × as long as fore wing.

Colour. Largely black ( Fig. 13 View FIGURE 13 ); propleuron and mesoscutum reddish yellow ( Figs 14c, 14d View FIGURE 14 ); sixth and seventh metasomal tergites yellow posteriorly ( Fig. 14e View FIGURE 14 ); wing membrane smoky grey, pterostigma and veins dark brown ( Figs 14a, 14b View FIGURE 14 ).

Variation. Length of body 8.6–9.1 mm, of fore wing 8.2–9.1 mm (♀), and of ovipositor sheath 5.3–5.5 mm; antenna of ♀ with 52 antennomere; in dorsal view length of eye 2.0–2.1 × temple; length of mesosoma 1.5–1.6 × its height; propodeum weakly punctate or largely smooth; fore wing vein SR1 1.3–1.5 × as long as vein 3-SR;; apical width of second tergite 2.0–2.5 × its median length; ovipositor sheath 0.6–0.7 × as long as fore wing; mesopleuron somewhat reddish or black anteriorly; propodeum sometimes blackish brown; pterostigma dark brown or yellow.

Biology. Unknown.

Distribution. China (Yunnan).

Etymology. Named after the largely dark metasomal sternites: “niger” and “venter” are Latin for “black” and “belly”, respectively.