The subgenera Glabrobracon Fahringer, Lucobracon Fahringer and Uncobracon Papp of the genus Bracon Fabricius (Hymenoptera, Braconidae, Braconinae) in China, with the description of eleven new species Author Li, Yang Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China & College of Chemistry and Life Sciences, Chengdu Normal University, Chengdu 611130, China & Zhejiang Provincial Key Laboratory of Biology of Crop Pathogens and Insects, Zhejiang University, Hangzhou 310058, China Author He, Jun-hua Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China Author Chen, Xue-xin Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China & State Key Lab of Rice Biology, Zhejiang University, Hangzhou 310058, China & Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Zhejiang University, Hangzhou 310058, China & Zhejiang Provincial Key Laboratory of Biology of Crop Pathogens and Insects, Zhejiang University, Hangzhou 310058, China xxchen@zju.edu.cn text Deutsche Entomologische Zeitschrift 2020 67 2 209 252 http://dx.doi.org/10.3897/dez.67.57668 journal article http://dx.doi.org/10.3897/dez.67.57668 1860-1324-2-209 41F77B2A0E1C4874AE891E72B3DD6A32 4B9527FBB0895BB49FCDA395D4DA02C1 Bracon (Glabrobracon) indistinctus sp. nov. Figs 1 , 2 Type material. Holotype . ♀, China, Zhejiang Prov., Mt. Tianmu, Laodian-Xianrending, 1250-1547 m alt., 17-18.V.1988, Fan Jinjiang, No. 884381 (ZJUH). Diagnosis. This new species is very similar to B. (G.) isomera (Cushman, 1931), but can be separated from the latter by the following characters: metasomal tergites largely dark brown (yellow to reddish-brown in B. isomera ); second metasomal suture crenulate and sinuate (smooth and straight or weakly sinuate); propodeum with short medio-longitudinal carina posteriorly (without short medio-longitudinal carina posteriorly); fore wing vein cu-a slightly postfurcal (interstitial). Description. Holotype , ♀, length of body 4.1 mm, of fore wing 4.2 mm, of ovipositor sheath 2.1 mm. Head . Antenna with 36 segments; apical antennal segment with a short spine apically, 2.9 x longer than its maximum width (Fig. 2n ); first flagellomere 2.1 x longer than wide, 1.1 and 1.2 x longer than second and third, respectively, the latter being 1.5 x longer than wide; malar suture rather weak, with some short setae; clypeus height: inter-tentorial distance: tentorio-ocular distance = 5: 11: 6; clypeus densely short setose; eye not emarginate (Fig. 2g ); face smooth, with some short setae laterally (Fig. 2g ); eye height: shortest distance between eyes: head width = 13: 17: 32; frons largely smooth, except for a few weak striae laterally, slightly concave behind antennal sockets, with a rather weak median groove (Fig. 2h ); vertex smooth, with sparse short setae; shortest distance between posterior ocelli: minimum diameter of elliptical posterior ocellus: shortest distance between posterior ocellus and eye = 3: 3: 7; temples linearly narrowed behind eyes (Fig. 2h ). Mesosoma . Length of mesosoma 1.4 x its height (Fig. 2c ); notauli rather weak and only impressed anteriorly (Fig. 2d ); mesoscutum smooth and with sparse setae along imaginary notaulic courses (Fig. 2d ); scutellar sulcus deep, moderately wide, with crenulae (Fig. 2d ); scutellum smooth, with some setae; metanotum moderately convex medially (Fig. 2d ); propodeum largely smooth, with a short medio-longitudinal carina posteriorly and sparsely setose medially, with dense long setae laterally (Fig. 2j ). Wings . Fore wing (Fig. 2a ): SR1: 3-SR: r = 40: 25: 11; 1-SR+M more or less straight, 1.4 x longer than 1-M; 2-SR: 3-SR: r-m = 18: 25: 9; m-cu straight, 1.8 x longer than 2-SR+M; angle between 1-SR and C+SC+R about 80°; cu-a weakly postfurcal. Hind wing (Fig. 2b ): SC+R1: 2-SC+R: 1r-m = 18: 3: 10. Legs . Length of fore femur: tibia: tarsus = 26: 29: 35; length of hind femur: tibia: basitarsus = 35: 45: 17; length of femur, tibia and basitarsus of hind leg 4.4, 9.0 and 6.8 x their maximum width, respectively; hind tibial spurs 0.2 and 0.3 x as long as hind basitarsus. Metasoma . Length of first tergite 1.2 x its apical width, median area convex, surface largely smooth, but well-defined grooves sparsely and weakly crenulate (Fig. 2k ); lateral grooves of first tergite with sparse crenulae (Fig. 2k ); medially second tergite approximately as long as third tergite; second metasomal suture narrow, sparsely and weakly crenulate, strongly curved medially (Fig. 2e ); medially third tergite 0.3 x as long as its apical width; second to seventh tergites smooth (Fig. 2e ); setose part of ovipositor sheath 0.5 x as long as fore wing. Colour . Head largely blackish-brown, eye orbits and mandible (except its black apex) reddish-yellow (Fig. 2g, h ); mesosoma largely reddish-yellow, propodeum anteriorly and posteriorly somewhat infuscate (Fig. 2c, d, j ); legs largely blackish-brown, fore coxa and trochanter dark yellow; metasoma largely dark brown (Fig. 2e ); first and second metasomal tergites relatively pale (Fig. 2e, k ); ovipositor sheath black (Fig. 1 ); wing membrane infuscate, pterostigma and veins dark brown (Fig. 2a, b ). Biology. Unknown. Distribution. China (Zhejiang). Etymology. Named after the rather weakly developed notauli: "indistinctus" is Latin for "not distinct". Figure 1. Bracon (Glabrobracon) indistinctus sp. nov., ♀, holotype, habitus lateral. Figure 2. Bracon (Glabrobracon) indistinctus 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. Propodeum, dorsal view; k. First metasomal tergite, dorsal view; l. Scapus outer side, lateral view; m. Apex of ovipositor, lateral view.