Bracon (Bracon) semitergalis 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) semitergalis Tobias, 2000

Figs 37-45 , A4

Bracon semitergalis Tobias, 2000 in Belokobylskij and Tobias 2000: 126.

Bracon leptotes Li, He & Chen, 2020b: 222; syn. nov.

Material.

South Korea (9 females, 4 males). - Gangwon-do • 1 female; Goseong-gun, [5] Toseong-myeon , Sinpyeong-ri , Seoraksan Mountain ; 2 Aug. - 19 Oct. 2002; D.-S. Ku leg.; Malaise trap; SMNE 767 • 1 female; Gapyeong-gun, [32] Cheongpyeong-myeon, Homyeong-ri, Cheongpyeong Dam; 14 Jun. 1992; D.-S. Ku leg.; NIBR 1441 • 1 female; Yangpyeong-gun, [34] Okcheon-myeon, Yongcheon-ri, Yongmunsan Mountain ; 14 Jun. 1992; D.-S. Ku leg.; SMNE 1489 • 1 male; Suwon-si, [37] Gwonseon-gu, Seodun-dong, Yeogisan Mountain ; 11 May 1994; D.-S. Ku leg.; SMNE 763. - Gyeongsangbuk-do • 1 male; Bonghwa-gun, [40] Seokpo-myeon, Seokpo-ri; 28 May 1993; D.-S. Ku leg.; SMNE 765. - Chungcheongbuk-do • 1 male; Chungju-si, [56] Sancheok-myeon, Yeongdeok-ri; 23 May 1993; D.-S. Ku leg.; SMNE 755 • 1 female; Jincheon-gun, [57] Jincheon-eup, Saseong-ri; 15 Jun. 1992; D.-S. Ku leg.; SMNE 768 • 1 female; Goesan-gun, [61] Cheongcheon-myeon, Cheongcheon-ri; 23 May 1993; D.-S. Ku leg.; SMNE 754 • 1 male; Okcheon-gun, [62] Iwon-myeon, Iwon-ri; 22 May 1993; D.-S. Ku leg.; SMNE 762. - Gyeongsangnam-do • 1 female; Jinju-si, [72] Gajwa-dong; 15 May 1993; D.-S. Ku leg.; ZISP 764. - Jeollanam-do • 1 female; Gurye-gun, [81] Sandong-myeon, Jwasa-ri, Jirisan Mountain (Simwon); 4 Aug. 1996; K.-J. Hong leg.; SMNE 766 • 1 female; Yeosu-si, [88] Nam-myeon, Yeondo Island , Yeondo-ri; 20 Jul. 1993; D.-S. Ku leg.; SMNE 760 • 1 female; same data as for preceding; ZISP 761 .

Additional material.

Russia - Primorskiy Territory • 1 female (holotype); Shkotovskiy District , Anisimovka; 5-7 Jun. 1993; S.A. Belokobylskij leg.; forest, meadow; ZISP .

Distribution.

Russia: Far East: Primorskiy Territory; South Korea (new record).

Description.

Female. Fore wing length 2.7-3.4 mm. Width of head (dorsal view) 1.7 × its median length. Transverse diameter of eye (dorsal view) 2.3-2.5 × longer than temple. OOL 2.6-2.8 × Od; POL 1.3-1.5 × Od; OOL 1.8-2.2 × POL. Longitudinal diameter of eye (lateral view) 1.3-1.4 × its transverse diameter; hind margins of eye and temple subparallel. Face width 1.3-1.5 × combined height of face and clypeus. Longitudinal diameter of eye 3.2-3.6 × longer than malar space (anterior view). Malar suture absent. Width of hypoclypeal depression 1.5-1.8 × distance from depression to eye. Antenna 1.0-1.1 × as long as fore wing, with 27-32 antennomeres. First, middle and penultimate flagellomeres 2.2-2.5 ×, 1.5-1.9, and 1.9-2.5 × longer than wide, respectively. Mesosoma 1.6 × longer than its maximum height. Mesoscutum setose on notaulic area and with sparse setae medio-longitudinally. Notauli very deep anteriorly, impressed and almost united posteriorly. Mesepimeral and metapleural sulci smooth. Medio-longitudinal keel developed in apical third of propodeum, branching. Fore wing vein r arising from basal 0.45-0.50 of pterostigma; vein 1-R1 1.4-1.8 × longer than pterostigma; marginal cell 9-13 × longer than distance from its apex to apex of wing; vein 3-SR 2.3-2.6 × vein r ( Li et al. 2020b: 3 ×), 0.5-0.6 × vein SR1, 1.2-1.4 × vein 2-SR ( Li et al. 2020b: 1.7 ×). Hind femur 3.6-3.8 × longer than wide. Hind tibia with without subapical row of thick setae. Fifth segment of hind tarsus 0.45-0.50 × and 0.88-0.90 × as long as hind basitarsusas and second segment, respectively. Fifth segment of hind tarsus as long as second segment. Claws with shortly protruding and blunt basal lobe. First metasomal tergite with incomplete dorsal carinae strongly curved towards apex of tergite and with developed dorsolateral carinae, its median length 0.95-1.20 × its apical width. Second tergite with weak elongate-triangulate median area and with more or less deep s-shaped crenulated dorsolateral impressions; medially 0.90-1.15 × as long as third tergite; its basal width 1.3-1.6 × its median length. Second metasomal suture deep, curved and crenulate. Apical margins of third to sixth tergites thin. Ovipositor sheath 1.2-1.7 × longer than hind tibia and 0.35-0.50 × as long as fore wing. Apex of ovipositor with developed nodus and ventral serration. Body mainly smooth; face medially weakly granulate under toruli, laterally almost smooth; frons weakly granulate; malar space granulate; first metasomal tergite obliquely rugulose posteriorly, second or second and third tergites striate-rugulose, fourth tergite with rugulose to papillary-like sculpture, fifth and sixth tergites with weakening papillary-like sculpture or almost smooth ( Li et al. 2020b: fig. 6e, metasomal sculpture strongly smoothed, second tergite weakly rugulose, third and fourth tergites weakly shagreen to smooth). Body mainly dark brown, most of legs and ventral side of metasoma yellow; head ventrally, scape, pronotum, tegula brownish yellow; maxillary palps pale yellow; wing membrane weakly darkened, pterostigma yellowish brown, veins pale brown.

Diagnosis.

Relationships of Bracon semitergalis 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 1 - A 4. Collecting localities of the material on the species new to South Korea. Point numbers correspond with numbers in brackets in text.