Campyloneurus tergipunctatus, 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 : 40-42

Campyloneurus tergipunctatus sp. nov.

Figs 27–28

Type material. Holotype. CHINA • ♀; Yunnan Province, Xishuangbanna Mengla ; 620–650m; light trap; 12 Jul. 1959; F.J. Pu leg.; IZCAS IOZ (E)1964627 . Paratypes. CHINA • 1♀; sama data as holotype; IZCAS IOZ (E) 1964631 • 1♀; Yunnan Province, Simao ; 1500m; 24 Apr. 1982; G. T. Jin leg.; SHEM 34005151 .

Diagnosis. This new species is very similar to C. kirbyi ( Cameron, 1905) , but can be separated from the latter by the following characters: flagellomeres of antenna blackish brown, scapus and pedicel with a black brown stripe on outer side, respectively (antenna entirely black in C. kirbyi ); ovipositor sheath 0.3–0.4 × as long as fore wing (0.6–0.8 ×); first metasomal tergite without medio-longitudinal carina posteriorly (with medio-longitudinal carina posteriorly); face coarsely punctate (irregularly rugose); median groove of frons less deep (very deep and clearly defined).

Description. Holotype, ♀, length of body 8.7 mm, of fore wing 9.3 mm, of ovipositor sheath 3.8 mm.

Head. Antenna incomplete, with 75 antennomeres remaining; first flagellomere 1.1 × longer than its maximum width, 1.1 and 1.2 × longer than second and third, respectively, the latter 0.9 × longer than wide; malar suture sparsely long stose ( Fig. 28i ); clypeus height: inter-tentorial distance: tentorio-ocular distance = 5: 9: 6; clypeus sparsely short setose; eye weakly emarginated ( Fig. 28g ); width of hypoclypeal depression 1.3 × its height; face 0.9 × longer than wide, coarsely densely punctate and densely long setose ( Fig. 28g ); eye height: shortest distance between eyes: head width = 22: 17: 40; frons smooth, weakly concave behind antennal sockets, with a median groove ( Fig. 28h ); vertex smooth, with sparse short setae; minimum distance between posterior ocelli: minimum diameter of elliptical posterior ocellus: minimum distance between posterior ocellus and eye = 5: 4: 8; in dorsal view length of eye 2.2 × temple; temples linearly narrowed behind eyes ( Fig. 28h ).

Mesosoma. Length of mesosoma 1.7 × its height ( Fig. 28c ); notauli only impressed anteriorly ( Fig. 28d ); mesoscutum with sparse short setae ( Fig. 28d ); scutellar sulcus narrow and deep, with crenulae ( Fig. 28d ); scutellum short setose posteriorly; metanotum strongly convex medially ( Fig. 28d ); propodeum largely smooth except for a few rather weak longitudinal striae medially and sparse punctures laterally, without medio-longitudinal carina or groove, glabrous medially, and densely long setose laterally ( Fig. 28d ).

Wings. Fore wing ( Fig. 28a ): pterostigma 3.9 × longer than wide; SR1: 3-SR: r = 26: 21: 5; 1-SR+M rather strongly curved subbasally; 2-SR: 3-SR: r-m = 9: 21: 8; angle between 1-SR and C+SC+R about 85°; cu-a weakly postfurcal, slightly oblique anteriorly. Hind wing ( Fig. 28b ): SC+R1: 2-SC+R: 1r-m = 25: 4: 15.

Legs. Length of fore femur: tibia: tarsus = 26: 31: 37; length of hind femur: tibia: basitarsus = 38: 59: 22; length of femur, tibia and basitarsus of hind leg 3.8, 9.8 and 5.5 × their maximum width, respectively; hind tibial spurs 0.4 and 0.5 × as long as hind basitarsus.

Metasoma. Length of first metasomal tergite 0.9 × its apical width, median area convex and coarsely sculptured, without medio-longitudinal carina posteriorly, lateral grooves crenulate ( Fig. 28j ); second tergite largely coarsely sculptured, triangular medio-basal area of second tergite weakly rugose, attached with medio-longitudinal carina apically, the latter not reaching posterior margin of second tergite ( Fig. 28e ); apical width of second tergite 1.7 × its median length, antero-lateral areas of second tergite rather small and smooth, anterior grooves wide and with weak sparse crenulae ( Fig. 28e ); second suture wide and deep, crenulate, weakly curved medially ( Fig. 28e ); apical width of third tergite 3.6 × its median length; third and fourth tergites coarsely sculptured (fourth tergite densely punctate laterally), with distinct antero-lateral areas, oblique anterior grooves and subposterior groove with crenulae ( Fig. 28e ); fifth tergite sparsely punctate ( Fig. 28e ); sixth and seventh tergites largely smooth; ovipositor sheath 0.4 × as long as fore wing.

Colour. Largely yellow ( Fig. 27 ); flagellomeres of antenna and mandible apically blackish brown ( Fig. 28g ); scapus and pedicel with a black brown stripe on outer side, respectively ( Fig. 28i ); wing membrane yellowish, but infuscate apically, stigmal spot dark brown, up to base of vein 1-SR+M, pterostigma yellow, but apical third dark brown, basal veins yellow (vein 1-SR+M dark brown subbasally), and apical veins brownish yellow ( Figs 28a, 28b ).

Variation. Length of body of female 8.7–9.5 mm, of fore wing of female 9.3–11.0 mm, and of ovipositor sheath 3.7–4.0 mm; vein SR1 of fore wing 1.3–1.4 × vein 3-SR; vein SC+R1 of hind wing 1.2–1.5 × vein 1r-m; ovipositor sheath 0.3–0.4 × as long as fore wing; sometimes scapus brownish yellow ventrally or entirely blackish brown.

Biology. Unknown.

Distribution. China (Yunnan).

Etymology. Named after the punctate fourth and fifth tergites: “tergum” and “punctum” are Latin for “back” and “small hole, dot”, respectively.

Figures

FIGURE 27. Campyloneurus tergipunctatus sp. nov., ♀, holotype, habitus lateral.

FIGURE 28. Campyloneurus tergipunctatus sp. nov., ♀, holotype. a. fore wing; b. hind wing; c. mesosoma, lateral view; d. mesosoma, dorsal view; e. metasoma, dorsal view; f. hind leg, lateral view; g. head, front view; h. head, dorsal view; i. head, lateral view; j. first metasomal tergite, dorsal view; k. scapus outer side, lateral view.