Iphiaulax wuhainensis Wang & Chen, 2008

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

Iphiaulax wuhainensis Wang & Chen, 2008

Figs 105-109 , A11

Material.

South Korea (9 females, 14 males) • 2 females; without explicit locality [ “白桥” = 白橋, (" White Bridge ")]; 9 Aug. 1957; SMNE 65, 66. - Gangwon-do • 1 male; Yanggu-gun, [8] Bangsan-myeon, Omi-ri ; 13 Jun. 1992; D.-S. Ku leg.; SMNE 474. - Chungcheongbuk-do • 1 male; Okcheon-gun, [62] Iwon-myeon, Iwon-ri ; 22 May 1993; D.-S. Ku leg.; SMNE 491. - Gyeongsangnam-do • 1 female; Uiryeong-gun, [67] Garye-myeon, Gapeul-ri , Jagulsan Mountain ; 21 Jul. 1992; D.-S. Ku leg.; SMNE 473 • 1 male; Changwon-si, [68] Masanhappo-gu, Jinbuk-myeon , Yeonghak-ri , Seobuk Mountain ; 20 Jul. 1992; D.-S. Ku leg.; SMNE 475 • 1 male; Jinju-si, [71] Daepyeong-myeon, Naechon-ri ; 4 Jul. 1992; D.-S. Ku leg.; SMNE 487 • 2 females; Jinju-si, [72] Gajwa-dong ; 16 Jun. 1993; D.-S. Ku leg.; NIBR 476, 477 • 2 females; same data as for preceding; SMNE 478, 479 • 2 males; same data as for preceding; SMNE 480, 481 • 1 male; same data as for preceding; 19 Jun. 1993; SMNE 486 • 1 male; same data as for preceding; 9 Jun. 1993; ZISP 489 • 1 male; same data as for preceding; SMNE 490 • 1 female; same data as for preceding; 22 Aug. 1993; SMNE 488 • 1 male; Jinju-si, [75] Neadong-myeon, Doksan-ri ( Around the forest road); 1 Jun. 2003; Tea-Ho Ahn leg.; sweeping; SMNE HYM-BRA_ATH_0000675 • 1 male; Jinju-si, [76] Geumgok-myeon ; 26 May 1984; S.J. Choi leg.; SMNE 485 • 1 male; same data as for preceding; 1 Jun. 1984; SMNE 484 • 2 males; same data as for preceding; 21 Jun. 1984; SMNE 482, 483 • 1 female; same locality as in preceding; 16 Jun. 1985; G.J. Jeong leg.; ZISP 472 .

Additional material.

China - Liaoning • 1 female; Shenyang; 1 Jul. 1952; I.A. Rubtsov leg.; ZISP .

Distribution.

China: Inner Mongolia, also presumably Beijing, Liaoning, Shaanxi, Shandong, Zhejiang (see remarks). South Korea (new record).

Description.

Female. Body length 5-8 mm; fore wing length 5-7 mm. Width of head (dorsal view) 1.5-1.7 × its median length. Transverse diameter of eye (dorsal view) 1.3-1.4 × and longer than temple. OOL 3.1-3.7 × Od; POL 1.5-1.8 × Od; OOL 1.9-2.2 × POL. Face width 1.5-1.6 × combined height of face and clypeus; 2.2-2.5 × larger than width of hypoclypeal depression. Longitudinal diameter of eye 1.7-1.8 × longer than malar space (anterior view). Malar suture weakly impressed (sometimes more deep under eye), weakly crenulate and densely setose. Antenna with 47-61 antennomeres. Scape (lateral view) longer ventrally than dorsally, somewhat swollen. First, middle and penultimate flagellomeres 1.5-1.8 ×, about 1.3 ×, and 1.4-1.6 × longer than wide, respectively. Apical flagellomere weakly pointed, apically with flat inclined area. Mesosoma 1.8-1.9 × longer than its maximum height. Notauli deep anteriorly, absent and not united posteriorly. Mesoscutum setose only on notaulic area. Mesepimeral and metapleural sulci smooth, mesopleural pit indistinct. Fore wing vein 1-R1 1.2-1.4 × longer than pterostigma; marginal cell 2.7-3.6 × longer than distance from its apex to apex of wing. Vein 3-SR 2.9-3.3 × vein r, 0.53-0.63 × vein SR1, 1.7-2.1 × vein 2-SR. Wing membrane evenly setose in base of hind wing. Hind femur 3.3-4.0 × longer than wide. Claws with moderately large rounded basal lobe. Median length of first tergite 1.1-1.3 × its apical width. Dorsolateral carinae of first metasomal tergite absent or weakly separated (sometimes only behind spiracle), dorsal carinae absent. Second tergite medially about 1.2 × longer than third tergite; with deeply impressed anteriorly and very shallow posteriorly, smooth s-shaped dorsolateral longitudinal impressions and with anterolateral posteriorly diverging deep smooth furrows; basal width of second metasomal tergite 1.2-1.5 × larger than its median length. Apical margins of third to sixth tergites thick, without transverse subapical grooves. Ovipositor sheath 0.80-1.05 × as long as hind tibia and 0.24-0.30 × as long as fore wing. Apex of ovipositor with weakly widened blunt upper valve and weakly developed or absent ventral serration. Body entirely smooth. Head, mesosoma and legs mainly brownish black, metasoma reddish yellow. Face, anterior and posterior margins of eye, lateral sides of pronotum, mesoscutum along notauli, apex of fore femur, and base of fore tibia reddish yellow. Maxillary palps brownish black, tegulae dark brown. Wing membrane deeply darkened, somewhat lighter apically; pterostigma brown, sometimes with small yellowish patch basally, wing veins dark brown.

Male. Body length 4.0-5.5 mm; fore wing length 4.3-5.5 mm. Antenna with 41-51 antennomeres. First flagellomere 1.8-2.2 × longer than its apical width. Mesosoma 1.9-2.1 × longer than its maximum height. Vein 3-SR 2.9-3.8 × vein r. Hind femur 3.6-4.6 × longer than wide. Furrows on metasoma weakly crenulate. Basal width of second metasomal tergite 1.0-1.2 × larger than its median length. Second tergite sometimes weakly and sparsely foveate. Apex of metasoma with brownish black patch.

Diagnosis.

Iphiaulax wuhainensis is very similar to I. impeditor (Kokujev, 1898) distributed in Europe, Caucasus, Western and Central Asia (including Kazakhstan), Western Siberia, and Krasnoyarsk Territory in Eastern Siberia. Two taxa may represent two subspecies or geographical varieties of one species. The differences between I. wuhainensis and I. impeditor are presented below.

1	Pterostigma yellow with brown patch apically (Fig. 110 ). Anterolateral areas of second-fifth metasomal tergites separated by crenulate furrows (Fig. 116 ). Second tergite with smoothed foveate sculpture; first tergite laterally weakly rugulose (Fig. 115 ). Malar suture deep, sparsely setose (Figs 112 , 113 ). Mesopleural pit deep and separated from mesepimeral sulcus. Marginal cell 2.2-2.4 × longer than distance from its apex to apex of wing	Iphiaulax impeditor (Kokujev)
-	Pterostigma brown, sometimes with small yellowish patch basally (Fig. 105 ). Anterolateral areas of second-fifth metasomal tergites separated by smooth furrows (Fig. 109 ). Second tergite smooth (sometimes only with sparse narrow punctures); first metasomal tergite laterally smooth (Fig. 107 ). Malar suture weakly impressed, densely setose (Fig. 106 ). Mesopleural pit indistinct. Marginal cell 2.7-3.6 × longer than distance from its apex to apex of wing	Iphiaulax wuhainensis Wang & Chen

Remarks.

Two of three works indicating Iphiaulax impeditor in China ( Wang et al. 2008; Li et al. 2020c) list mostly the same material. Both works do not indicate the most distinct differences between I. impeditor and I. wuhainensis , the coloration of the pterostigma and sculpture of metasoma. In addition, the pictures of I. impeditor in Li et al. (2020c: figs 33, 34) obviously represent a specimen of I. wuhainensis . Thus, both indications of I. impeditor in China are doubtful and likely belong to I. wuhainensis . I. impeditor has been also listed for the north-east part of China (Liaoning: Tobias and Belokobylskij 2000). This indication is based on a single specimen in the collection of ZISP (the label is cited above in the additional material for the species), which also belongs to I. wuhainensis .

Figures

Figures 105 - 116. Iphiaulax wuhainensis Wang & Chen, 2008 (105 - 109 female, NIBR) and Iphiaulax impeditor (Kokujev, 1898) (110 - 116 lectotype, female, ZISP) 105, 110 habitus, lateral view 106, 112 head, ventrolateral view 107, 115 first metasomal tergite, dorsal view 108, 113 head, lateral view 109 metasoma, dorsolateral view 111 head, anterior view 114 head, dorsal view 116 metasoma, dorsal view. Scale bars: 1 mm.

Figures A 9 - A 12. Collecting localities of the material on the species new to South Korea. Point numbers correspond with numbers in brackets in text.