Brachyzapus convergens Choi & Lee, 2019

Choi, Jin-Kyung, Kolarov, Janko & Lee, Jong-Wook, 2019, Descriptions of two new species of Brachyzapus Gauld & Dubois (Hymenoptera: Ichneumonidae: Pimplinae) from South Korea with key to a Palaearctic species, Zootaxa 4711 (2), pp. 293-306 : 294-297

Brachyzapus convergens Choi & Lee sp. nov.

( Figs 1–7 )

Specimens examined. Holotype: female, South Korea, GB, Gunwi-gun , Bugye-myeon , Dongsan-ri, Site 39, (M.T.), 36°01′29.04″N 128°41′31.11″E, 30.VIII–25.IX.2014, J.W. Lee (Type depository: YNU) . Paratypes: 1♀, Daegu-si, Dong-gu, Sinmu-dong , Site 48, 36°00′5.18″N 128°40′54.71″E, 30.VIII–25.IX.2014, J.W. Lee (YNU) ; 1♀, ditto, 8.IV–14.V.2014, J.W. Lee (YNU) ; 1♀, Daejeon-si, Dong-gu, Daejeon Univ. , 36°19′57.09″N 127°21′40.38″E, 8.X– 30.XI.2007, J.W. Lee (YNU) ; 1♂, Seoul-si, Seocho-gu, Mt. Cheonggyesan , 21.V.1990, M.S. Lee (YNU); [ CB] 1♂, Jecheong-si, Mt. Woraksan National Park, Sangseonam , 2.IX–3.XI.2015, J.C. Jeong (YNU); [ CN] 1♀, Boryeonggun, Mt. Oseosan (M.T.), 16.V–29.VI.1999, D.S. Ku (YNU) ; 1♂, ditto, 29.VI–9.IX.1999, D.S. Ku (YNU); [ GB] 1♂, Yeongju-si, Punggi-eup, Jungnyeong , 21.V–3.VI.2009, J.W. Lee (YNU) ; 1♀, Gyeongsan-si, Wachon-myeon, Daedong-ri , 35°58′48.10″N 128°46′32.70″E, 23.X.2014, C.J. Kim (YNU) ; 1♂ 1♀, Gunwi-gun, Bugye-myeon, Dongsan-ri , Site 39, (M.T.), 36°01′29.04″N 128°41′31.11″E, 30.VIII–25.IX.2014, J.W. Lee (YNU) ; 1♀, Cheongdogun, Unmun-myeon, Mt. Unmunsan , U2, 35°38′45″N 128°57′33″E, 23.V–6.VI.2008, J.W. Lee (YNU) ; 2♂♂ 1♀, ditto, 15–24.V.2009, J.W. Lee (YNU) ; 1♀, ditto, 29.VII–14.VIII.2009, J.W. Lee (YNU) ; 1♀, Cheongdo-gun, Unmunsa , 20.V.1989, Y.K. Lee (YNU) ; 1♀, Uljin-gun, Mt. Baekamsan , 20.VI–12.VIII.1999, D.S. Ku (YNU) ; 2♀♀, Gyeongju-si, Sannae-myeon, Ura-ri , Mt. Saryeongsan , 35°48′31.4″N 129°00′07.3″E, 18.V.2016, J.W. Lee (YNU) ; 1♀, Yeongju-si, Punggi-eup, Jungnyeong , 35°53′42.7″N 128°26′22″E, 21.V–3.VI.2009, J.W. Lee (YNU); [ GG] 1♂, Gapyeong-gun, Cheongpyeong-myeon, Goseong-ri , Mt. Homyeongsan , Alt. 220 m, 37°43′16.3″N 127°29′23.4″E, 27.V–10.VI.2009, J.O. Lim (YNU) ; 1♀, Gapyeong-gun, Mt. Hwaaksan , 5.IX.1998, Y.T. Quan (YNU) ; 1♂, Pocheonsi, Soheul-eup, Jikdong-ri , 37°45′1.9″N 127°08′34.4″E, 1–16.VIII.2012, I.G. Kim (YNU) ; 1♀, Yongin-si, Suji-gu, Mt. Gwanggyosan , Alt. 231 m, 37°19′53.8″N 127°02′38.1″E, 6–24.IX.2008, J.O. Lim (YNU) ; 1♀, Namyangju-si, Choan-gu, Songchon-dong , Mt. Ungilsan , Alt. 134 m, 37°34′43.3″N 127°18′37.5″E, 27.V–10.VI.2009, J.O. Lim (YNU); [ GN] 1♀, Hamyang-gun, Macheon-myeon, Deokjeon-ri , Baekmudong , 14.VII–11.X.2011, 35°21′13.95″N 127°40′41.97″E, J.C. Jeong (YNU) ; 1♀, Gyochang-gun, Gajo-myeon, Sukgang-ri , 6.VI.1987, J.W. Lee (YNU) ; 1♂, Sancheong-gun, Samjang-myeon, Yupyeong-ri , Mt. Jirisan National Park , Wangdeungjae , 35°23′8.81″N 127°46′44.11″E, 16.V–20.IX.2011, J.C. Jeong (YNU) ; 2♂♂, Sancheong-gun, Sicheon-myeon, Jungsan-ri , Mt. Jirisan National Park , Sanduryu , 35°16′29.75″N 127°33′57.57″E, 18.VV– 12.X.2011, J.C. Jeong (YNU); [ GW] 1♀, Donghae-si, Samhwa-dong, Mureung valley , 16–31.VIII.2005, J.W. Lee (YNU); [ JB] 1♀, Namwon-si, Jucheon-myeon, Mt. Jirisan National Park , Guryong valley , 35°23′19.89″N 127°27′44.51″E, 30.IX.2011 – 2.I.2012, J.C. Jeong (YNU) ; 3♀♀, Buan-gun, Jinseo-myeon, Unho-ri , Mt. Byeonsanbando National Park , 17.IX.2015, E.J. Hong (YNU) ; 1♂, Sunchang-gun, Bokheung-myeon , Songgotbawi, M.T., 16.VII.2004, K.B. Kim (YNU); [ JJ] 1♂, Seogyeopo-si, Mt. Hallasan National Park , 1100 goji, 8.IX.2001, H.S. Lee (YNU); [ JN] 3♀♀, Jeongeup-si, Jangseong-gun, Bukha-myeon , 35°24′N 126°52′E, 21.VI.2005, K.B. Kim (YNU) ; 1♀, Jeongeup-si, Ssanga-dong, Seoraebong (P.F.T.), 35°30′N 126°54′E, 16.V.2004, J.G. Han (YNU) ; 2♂♂, Gurye-gun, Gurye-eup, Mt. Jirisan National Park , Nogodan , 35°17′47.11″N 127°31′36.48″E, 20.V–10.X.2011, J.C. Jeong (YNU) ; 1♂, Mt. Jirisan National Park, Nogodan , 4.IX.1994, W.Y. Choi (YNU) ; 1♂, Gurye-gun, Masan-myeon, Hwangjeon-ri , Hwaeom valley , 35°15′32.08″N 127°29′55.67″E, 15.VIII–18.X.2011, J.C. Jeong (YNU) ; 1♂, Haenam-gun, Samsan-myeon, Mt. Duryeunsan , Daehrungsa , 12.V.2005, Y.B. Lee (YNU) .

Description. Female. Fore wing 6.5–9.2 mm, body 9.0– 14.4 mm, ovipositor sheath 1.4–2.0 mm long.

Colour. Black. Scape and pedicel from below, palpi, tegula, fore and mid coxae and trochanters and apical margin of tergites 3–7 narrowly (3–4 tergites only laterally) yellowish ( Figs 1, 2 ). Legs red, hind femur apically, hind tibia apically and hind tarsal segments darkened, hind tibia yellowish in base.

Head. Head distinctly narrowed behind. Face smooth, rarely punctured, the distance between punctures longer than their diameter; clypeus with more rare punctures. Inner orbits strongly convergent down ( Fig. 3 ), with weak excavation near antennal socket. Face and clypeus pubescent, hairs length as long as flagellum diameter. Clypeus with thin apical ridge. Mandible weakly twisted with two teeth, upper tooth distinctly longer than lower tooth. Malar space 0.15 × as long as basal width of mandible. Frons shiny without punctures, moderately concave in lower 2/3 ( Fig. 4 ). Ocelli large, diameter 1.1 × as long as distance between lateral ocellus and eye. Occipital carina strong, lamelliform, connected with hypostomal carina far from base of mandible. Antenna with 30 elongate flagellomeres; first flagellomere 5.0 × as long as wide.

Mesosoma . Pronotum smooth with strong epomia ( Fig. 6 ), punctured in front part and near upper lateral margin. Mesoscutum three lobed, with long and deep notauli ( Fig. 2 ). Lateral margin of mesoscutum behind tegula strongly widened, lamelliform. Scutellum moderately and evenly convex ( Fig. 5 ), carinate to the middle. Mesopleuron with a swelling below subtegular ridge ( Fig. 6 ). Epicnemal carina ended near middle of mesopleuron far from its front ridge. Mesosoma smooth, pubescent and punctate except speculum and front lower part of metapleuron. Propodeum without apical transverse carina. Lateral longitudinal carina developed in apical part of propodeum. Pleural carina strong. Propodeal spiracle elliptic, separated from pleural carina by its diameter length. Submetapleural carina strong, angulate curved on the middle. Second recurrent vein (2m-cu) in fore wing with two bullae ( Fig. 7 ). Nervulus interstitial, parallel vein joint postnervulus slightly below its middle. Hind wing with six distal hamuli. Nervellus strongly reclival, intercepted in upper third. Legs stout, hind femur 3.8 × as long as wide. Correlation between lengths of hind tarsal segments are 36:15:9:6:19.

Metasoma. Metasomal tergites slender ( Figs 1, 2 ), first tergite 2.1 × as long as wide. Median dorsal carina bypass middle of tergite. Lateral carina reaching apical margin of first tergite, not touching spiracle. Second tergite 1.5 × as long as wide apically. Ovipositor sheath 0.6 × as long as hind tibia.

Male. Antenna with 24–27 flagellomeres; yellow coloration more abundant; fore and mid legs yellow except tarsal segments and hind coxa and trochanters.

Etymology. The name comes from strongly convergent down inner orbits.

Distribution. South Korea.

Remarks. It is similar to Brachyzapus tenuiabdominalis (Uchida) , but distinguished from the by more strongly convergent down inner orbits ( Fig. 3 ); malar space shorter; strongly reclival and intercepted in the upper third nervellus; moderately convex scutellum and coloration of the body.

Figures

FIGURES 1–7. Brachyzapus convergens sp. nov.: 1–Habitus in lateral view; 2–Habitus in dorsal view; 3–Head in frontal view; 4–Head in dorsal view; 5–Mesoscutum and propodeum; 6–Mesosoma in lateral view; 7–Wings. Scale bars: 2 mm=1,2,7; 1 mm=6; 0.5 mm=3,4; 0.2 mm=4.