Campyloneurus longitudinalis, 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 : 17-19

Campyloneurus longitudinalis sp. nov.

Figs 9–10

Type material. Holotype. CHINA • ♀; Yunnan Province, Ruili ; 6 May 1981; J.H. He leg.; ZJUH 813011 .

Diagnosis. This new species is very similar to C. latesuturalis Turner, 1919 , but can be separated from the latter by the following characters: notauli often impressed anteriorly and reduced posteriorly (notauli nearly reaching posterior margin of mesoscutum in C. latesuturalis ); fourth and fifth metasomal tergites longitudinally striate (coarsely punctate); mesoscutum yellow, but lateral lobes and medio-anterior part of median lobe with a black spot (reddish brown and without black spots); pterostigma and most veins yellow (black); ovipositor sheath shorter, 0.5 × as long as body (longer, 0.75 × as long as body).

Description. Holotype, ♀, length of body 8.4 mm, of fore wing 8.8 mm, of ovipositor sheath 4.1 mm.

Head. Antenna with 48 antennomeres; apical flagellomere acute, 2.3 × longer than its maximum width ( Fig. 10k ); first flagellomere 1.7 × longer than its maximum width, 1.4 and 1.5 × longer than second and third flagellomeres, respectively, the latter 1.1 × longer than wide; malar suture moderately developed, coarsely rugose and densely short setose ( Fig. 10i ); clypeus height: inter-tentorial distance: tentorio-ocular distance = 4: 11: 9; clypeus long setose; eye weakly emarginated ( Fig. 10g ); face 0.7 × longer than wide, densely long setose, and coarsely sculptured ( Fig. 10g ); eye height: shortest distance between eyes: head width = 19: 17: 38; frons largely glabrous except for some sparse setae, concave behind antennal sockets, with a strong median groove ( Fig. 10h ); vertex largely glabrous, but with some sparse short setae; shortest distance between posterior ocelli: narrower diameter of elliptical posterior ocellus: shortest distance between posterior ocellus and eye = 10: 9: 20; in dorsal view length of eye 1.8 × temple; temples linearly narrowed behind eyes ( Fig. 10h ).

Mesosoma. Length of mesosoma 1.6 × its height ( Fig. 10c ); notauli only impressed anteriorly ( Fig. 10d ); mesoscutum largely glabrous, except for some long setae along notauli ( Fig. 10d ); scutellar sulcus deep and narrow, with crenulae ( Fig. 10d ); scutellum densely punctate and short setose; metanotum strongly convex medially, and with a short median carina anteriorly ( Fig. 10d ); propodeum largely smooth, except for a few short lateral carinae posteriorly, sparsely setose medially, and densely long setose laterally ( Fig. 10d ).

Wings. Fore wing ( Fig. 10a ): SR1: 3-SR: r = 40: 32: 5; 1-SR+M strongly bent after arising from 1-M; 2-SR: 3SR: r-m = 8: 32: 9; angle between 1-SR and C+SC+R about 75°; r-m weakly curved; cu-a weakly postfurcal. Hind wing ( Fig. 10b ): SC+R1: 2-SC+R: 1r-m = 15: 3: 10.

Legs. Length of fore femur: tibia: tarsus = 22: 25: 37; length of hind femur: tibia: basitarsus = 27: 43: 17; length of femur, tibia and basitarsus of hind leg 3.5, 7.1 and 5.8 × their maximum width, respectively; hind tibial spurs 0.40 and 0.35 × as long as hind basitarsus.

Metasoma. Metasomal tergites largely longitudinally sculptured ( Fig. 10e ); length of first tergite 1.1 × its apical width, median area convex and with a short medio-longitudinal carina posteriorly ( Fig. 10e ); first tergite with distinct lateral carinae, lateral grooves crenulate ( Fig. 10e ); apical width of second tergite 1.9 × its median length, triangular medio-basal area of second tergite glabrous, 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. 10e ); second suture wide, crenulate, straight medially ( Fig. 10e ); third–fifth tergites with weak antero-lateral areas, and transverse subposterior groove crenulate ( Fig. 10e ); sixth and seventh tergites glabrous, with some weak punctures posteriorly; ovipositor sheath 0.5 × as long as fore wing.

Colour. Largely black ( Fig. 9 ); but head mostly yellow, antenna, eyes and apex of mandible black brown; pronotum, scutellum and metanotum yellow; lateral and middle lobes of mesoscutum with a black spot anteriorly; fore and middle claws dark brown; hind leg black brown ( Fig. 10f ); sixth and seventh metasomal tergites yellow posteriorly ( Fig. 10e ); wing membrane largely infuscate, brownish grey apically, stigmal spot dark brown, pterostigma and veins infuscate ( Figs 10a, 10b ).

Biology. Unknown.

Distribution. China (Yunnan).

Etymology. Named after the largely longitudinally sculptured metasomal tergites: “longitudo” is Latin for “length”.

Figures

FIGURE 9. Campyloneurus longitudinalis sp. nov., ♀, holotype, habitus lateral.

FIGURE 10. Campyloneurus longitudinalis 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. scapus outer side, lateral view; k. apex of antenna; l. apex of ovipositor, lateral view.