Tersilochus (Tersilochus) iracundus Khalaim & Lee, 2014

Khalaim, Andrey I., Balueva, Ekaterina N., Kim, Ki-Beom & Lee, Jong-Wook, 2014, Review of the genus Tersilochus Holmgren (Hymenoptera, Ichneumonidae, Tersilochinae) from South Korea, Journal of Hymenoptera Research 36, pp. 27-51 : 34-36

Tersilochus (Tersilochus) iracundus Khalaim & Lee sp. n. Figs 18 -27

Description.

Female (holotype). Body length 3.7 mm. Fore wing length 2.8 mm.

Head strongly rounded behind eyes in dorsal view ( Fig. 19 ); temple 0.74 times as long as eye width. Inner eye orbits parallel ( Fig. 23 ). Mandible with upper tooth much longer than lower tooth. Clypeus lenticular, almost 3.0 times as broad as long, in profile convex, with lower 0.4 bent backwards ( Fig. 23 ); sparsely punctate, finely granulate, and dull in upper 0.7. Malar space 0.4 times as long as basal width of mandible. Flagellum of antenna weakly tapered towards apex, with 19 segments ( Fig. 20 ); subbasal flagellomeres 1.3-1.4 times, and subapical flagellomeres about 1.2 times as long as broad; flagellomeres 4-6 with distinct and flagellomere 7 with rudimental subapical finger-shaped structures on outer surface ( Fig. 21 ). Face, frons, vertex, and temple distinctly granulate, dull, and impunctate ( Figs 19 , 23 ).

Mesosoma entirely granulate, dull, impunctate; mesopleuron centrally with fine oblique striae on granulate background ( Fig. 24 ). Notaulus absent. Foveate groove weak and short, oblique, situated in anterior half of mesopleuron ( Fig. 24 ). Propodeum with narrow basal area, which is 0.4 times as long as apical area ( Fig. 22 ). Propodeal spiracle separated from pleural carina by 1.5 times diameter of spiracle. Apical area slightly impressed, anteriorly rounded ( Fig. 22 ). Apical longitudinal carinae developed in posterior half, anteriorly absent. Fore wing ( Fig. 25 ) with intercubitus thickened, as long as abscissa of cubitus between intercubitus and second recurrent vein. First abscissa of radius slightly longer than width of pterostigma. Metacarpus ending far from apex of fore wing. Postnervulus intercepted below middle. Hind wing with nervellus vertical. First tergite almost 3.0 times as long as broad posteriorly, mostly smooth, with petiole more or less round in cross-section, well separated from postpetiole in dorsal view, finely striate laterally before glymma ( Fig. 27 ). Glymma deep, situated somewhat behind center of first tergite, joining by distinct furrow to ventral part of postpetiole ( Fig. 26 ). Second tergite as long as anteriorly broad ( Fig. 27 ). Thyridial depression short, transverse. Ovipositor short, slender, almost straight basally and upcurved in apical 0.3, with fine teeth dorsally and ventrally at apex ( Fig. 26 ); sheath 0.7 times as long as first tergite.

Head, mesosoma, and first tergite black; palpi, mandible (except reddish black teeth), and lower 0.3 of clypeus yellow-brown; tegula yellow. Antenna dark brown. Pterostigma brown. Legs brownish yellow; fore and mid coxae weakly brown, and hind coxa strongly brown. Metasoma behind first tergite yellow-brown.

Male. Unknown.

Comparison.

Differs from other Palaearctic species of Tersilochus by the combination short malar space, reddish brown behind first tergite of metasoma ( Figs 26 , 27 ) and short ovipositor ( Fig. 26 ).

Type material.

Holotype female, South Korea, Chungbuk-do (CB), Jecheon-si, Deoksan-myeon, Worak-ri, Deoksanmaepyoso, 36°52'N, 128°13'E, Malaise trap, 6-20.V.2006, coll. J.W. Lee (YUG).

Distribution.

South Korea.

Etymology.

Named after the Latin iracundus (angry, hot-tempered, furious).

Figures

Figures 15 - 22. Tersilochus granulatus Khalaim, female, holotype (Figs 15, 16) and paratype (Fig. 17): 15 habitus (without apices of wings and ovipositor), lateral view 16 head and anterior part of mesoscutum, dorsal view 17 propodeum and base of metasoma, dorsal view. Tersilochus iracundus sp. n., female, holotype: 18 habitus (without wings), lateral view 19 head and anterior part of mesoscutum, dorsal view 20 antenna, lateral view 21 base of antenna, lateral view 22 propodeum and hind coxae, dorsal view.

Figures 23 - 30. Tersilochus iracundus sp. n., female, holotype: 23 head, frontal view 24 mesosoma, ventrolateral view 25 fore wings 26 metasoma with ovipositor, lateral view 27 tergites 1 - 3 of metasoma, dorsal view. Tersilochus nigellus sp. n., female, holotype: 28 head with antenna and anterior part of mesosoma, lateral view 29 mesosoma, lateral view 30 propodeum and base of metasoma, dorsolateral view.