Tersilochus (Tersilochus) runatus Khalaim & Sheng, 2009

Khalaim, Andrey & Sheng, Mao-Ling, 2009, Review of Tersilochinae (Hymenoptera, Ichneumonidae) of China, with descriptions of four new species, ZooKeys 14 (14), pp. 67-81 : 77-79

Tersilochus (Tersilochus) runatus Khalaim & Sheng , sp. n.

urn:lsid:zoobank.org:act:C4F89746-9751-4EC9-8D56-5B7AEC56AEC1

Figs 9, 10 , 27-31

Diagnosis. The new species belongs to the “cognatus” species group (correct name for the “jocator” species group according to Horstmann 2005) as the ovipositor has two dorsal teeth ( Fig. 10 ), differing from the European T. fulvipes Gravenhorst by the flagellum with 15-16 segments (24 segments in T. fulvipes ), the longer flagellomeres, and the propodeum with basal keel ( Fig. 29 ) (with basal area in T. fulvipes ).

Description. Female. Body length 3.15 mm.

Head roundly narrowed behind eyes in dorsal view ( Fig. 9 ), temple 0.9 times as long as eye width ( Fig. 9 ). Flagellum of antenna with 15-16 segments, filiform; all flagellomeres, excepting the basal and apical ones, 1.4-1.6 times as long as wide. Upper tooth of mandible longer than lower tooth. Malar space somewhat shorter than basal width of mandible. Clypeus very weakly convex, finely granulate upper 2/3, almost smooth in lower 1/3, with some sparse punctures. Face, frons and vertex granulate, impunctate. Temple finely granulate in upper part to almost smooth and shining in lower part.

Mesoscutum granulate, impunctate. Sternaulus as more densely granulate oblique area in anterior part of mesopleuron, with very fine transverse wrinkles ( Fig. 28 ). Mesopleuron granulate to almost smooth and shining. Propodeum with basal keel almost half as long as apical area ( Fig. 29 ). Propodeal spiracle separated from pleural carina by about one diameter of spiracle. Dorsolateral area of propodeum impunctate, indistinctly granulate, shining; apical area shining, almost smooth, but uneven ( Fig. 29 ).

Fore wing length 2.8 mm. First section of radial vein longer than width of pterostigma. Metacarp not reaching apex of fore wing. Second recurrent postfurcal, unpigmented anterior part. Nervellus of hind wing weakly reclivous. Tarsal claws not pectinate.

First tergite length 0.67 mm, posterior width 0.26 mm; tergite smooth dorsally and laterally, slender. Glymma in anterior 0.6 of first tergite, medium-sized, joined by a distinct furrow to ventral part of postpetiole. Th yridia slightly transverse ( Fig. 30 ). Second tergite length 0.28 mm. Ovipositor upcurved, with two strong, dorsal, subapical teeth, and distinctly denticulate ventrally ( Figs 10 , 31 ); sheath 1.6 mm long, about 2.4 times as long as first tergite ( Fig. 27 ).

Coloration ( Fig. 27 ). Body black. Palpi, mandible (except teeth), lower 1/3 of clypeus, tegula and legs (except black coxae and mainly brown hind femur) brownish yellow. Pterostigma brown. Metasoma behind first segment dark brown to black.

Male unknown.

Type material. Holotype female, China, Ningxia Hui Autonomous Region, Liupanshan , 35°24’ N, 106°23’ E, 1820 m, 30.VI.2005, coll. M.-L. Sheng ( GSFPM).

Etymology. From the Latin runatus (armed with spear).

Figures

Figures 1-10. Tersilochinae spp., ♀♀, holotypes. Diaparsis nitidulentis sp. n. 1 head, dorsal view; 2 apex and base of antenna, lateral view; 3 apex of ovipositor, lateral view. Probles vulnificus sp. n.; 4 head, dorsal view; 5 antenna, lateral view; 6 apex of ovipositor, lateral view. Tersilochus ningxiator sp. n.; 7 head, dorsal view; 8 apex of ovipositor, lateral view. Tersilochus runatus sp. n.; 9 head, dorsal view; 10 apex of ovipositor, lateral view.

Figures 27-31. Tersilochus runatus sp. n., ♀, holotype: 27 general habitus (without wings), lateral view; 28 mesosoma, lateral view 29 propodeum, dorso-lateral view 30 tergites 1-2, dorsal view 31 apex of ovipositor, lateral view.