Bracon (Bracon) sergeji Tobias, 2000

Samartsev, Konstantin & Ku, Deok-Seo, 2021, New records of Braconinae (Hymenoptera, Braconidae) from South Korea, Journal of Hymenoptera Research 83, pp. 21-72 : 21

Bracon (Bracon) sergeji Tobias, 2000

Figs 46-54 , A5

Material.

South Korea (5 females). - Gyeonggi-do • 1 female; Suwon-si, [37] Gwonseon-gu, Seodun-dong , Yeogisan Mountain ; 19 Aug. 1983; Y.I. Lee leg.; SMNE 756 . - Gyeongsangnam-do • 1 female ; Namhae-gun, [79] Idong-myeon, Sinjeon-ri , Geumsan Mountain ; 21 Aug. 1992; D.-S. Ku leg.; SMNE 758 . - Jeollanam-do • 1 female ; Jangseong-gun, [80] Samgye-myeon, Singi-ri , Taecheongsan Mountain , Bongjeongsa Temple ; 11 Jul. 1998; D.-S. Ku leg.; light trap; NIBR 759 • 1 female; Yeosu-si, [84] Nam-myeon, Dumo-ri , Town Moha ; 20 Jul. 1993; D.-S. Ku leg.; SMNE 749 • 1 female; Yeosu-si, [85] Nam-myeon, Yuseong-ri , Geumodo Island , Daedaesan Mountain ; 3 Aug. 1993; D.-S. Ku leg.; ZISP 750 .

Additional material.

Japan - Hokkaido Prefecture • 1 female (paratype); Sapporo, Maruyama Mountain ; 5 Sep. 1999; S.A. Belokobylskij leg.; ZISP A0045 . - Tochigi Prefecture • 1 female (paratype); Nikko; 2-3 Oct. 1999; S.A. Belokobylskij leg.; ZISP A0046 . - Fukushima Prefecture • 1 female (paratype); Hinoemata; 16-18 Aug. 1999; S.A. Belokobylskij leg.; ZISP A0047 .

Distribution.

Japan: Hokkaido, Honshu. South Korea (new record).

Description.

Female. Fore wing length 2.7-3.7 mm. Width of head (dorsal view) 1.7-1.9 × its median length. Transverse diameter of eye (dorsal view) 1.5-1.7 × longer than temple. OOL 2.4-2.8 × Od; POL 1.6-2.0 × Od; OOL 1.4 × POL. Longitudinal diameter of eye (lateral view) 1.4-1.6 × its transverse diameter; hind margins of eye and temple subparallel. Face width 1.5-1.6 × combined height of face and clypeus. Face width 1.9-2.4 × larger than width of hypoclypeal depression. Longitudinal diameter of eye 2.9-3.5 × longer than malar space (anterior view). Malar suture absent. Width of hypoclypeal depression 1.2-1.6 × larger than distance from depression to eye. Antenna 0.84-0.90 × as long as fore wing, with 25-27 antennomeres. First, middle and penultimate flagellomeres 1.9-2.3 ×, 1.5-2.2 × and 1.7-2.2 × longer than wide, respectively. Mesosoma 1.4-1.6 × longer than its maximum height. Mesoscutum setose on notaulic area, with sparse setae medio-longitudinally. Notauli very deep anteriorly, impressed and not united posteriorly. Mesepimeral and metapleural sulci smooth. Medio-longitudinal keel developed in apical third of propodeum, branching. Fore wing vein r arising from basal 0.40-0.45 of pterostigma; vein 1-R1 1.5 × longer than pterostigma; marginal cell 7-9 × longer than distance from its apex to apex of wing; vein 3-SR 2.5-2.9 × vein r, 0.55-0.70 × vein SR1, 1.3-1.6 × vein 2-SR. Hind femur 3.9-4.4 × longer than wide. Hind tibia with 2 thick setae subapically. Fifth segment of hind tarsus 0.45-0.50 × as long as hind basitarsus, 0.90-0.97 × as long as second segment. Claws with acute angularly protruding basal lobe. First metasomal tergite with incomplete dorsal carina and developed dorsolateral carinae; its median length 0.80-0.93 × its apical width. Second tergite without median area and with very shallow s-shaped weakly crenulate dorsolateral impressions not bordered by carinae; medially 1.0-1.2 × longer than third tergite; its basal width 1.7-2.0 × its median length. Second metasomal suture deep, curved and crenulate. Apical margins of third to sixth tergites thick, with weakly foveate transverse subapical grooves. Ovipositor sheath 1.3-1.4 × longer than hind tibia, 0.37-0.41 × as long as fore wing. Apex of ovipositor with weak nodus and distinct ventral serration. Body mainly smooth; frons, face, and malar space granulate; first tergite posteriorly rugose; second tergite laterally longitudinally rugulose, anteromedially rugose to rugulose; third tergite granulate-rugulose to weakly granulate; fourth-sixth tergites weakly granulate to smooth. Body mostly brownish black; legs and lateral sides of metasoma reddish brown; maxillary palps, basal half of hind tibia, and metasoma ventrally pale yellow; tegulae brownish yellow; wing membrane weakly darkened, pterostigma and veins brown.

Diagnosis.

Relationships of Bracon sergeji are listed in the diagnosis of B. tergalis (see below).

Figures

Figures 37 - 54. Bracon (Bracon) semitergalis Tobias, 2000 (37 - 45 holotype, female, ZISP) and B. (B.) sergeji Tobias, 2000 (46 - 54 paratype, female, ZISP) 37, 48 head and mesoscutum, dorsal view 38, 50 head, anterior view 39, 52 mesosoma, lateral view 40, 46 habitus, lateral view 41 head, ventrolateral view 42 first metasomal tergite, dorsal view 43 metasoma, dorsolateral view 44, 54 first-third metasomal tergites 45, 47 hind tarsus 49 apex of antenna 51 head, lateral view 53 metasoma, dorsal view. Scale bars: 0.5 mm (37 - 40, 41 - 45, 47 - 54); 1 mm (40, 46).

Figures A 5 - A 8. Collecting localities of the material on the species new to South Korea. Point numbers correspond with numbers in brackets in text.