Diaparsis (Diaparsis) nitidulentis 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 : 70-72

Diaparsis (Diaparsis) nitidulentis Khalaim & Sheng , sp. n.

urn:lsid:zoobank.org:act:52526EBE-F980-4A86-B37E-783699E4C9B8

Figs 1-3 , 11-14

Diagnosis. In the key to Palaearctic species of the subgenus Diaparsis s. str. ( Khalaim 2005), D. nitidulentis sp. n. runs to D. nitida Horstmann at couplet 22. Th e new species may be distinguished from this species by the slender flagellomeres ( Fig. 2 ), weaker sternaulus ( Fig. 12 ), longer ovipositor sheath ( Fig. 11 ), and the shape of the ovipositor ( Fig. 3 ).

Description. Female. Body length 4.7 mm.

Head roundly narrowed behind eyes in dorsal view ( Fig. 1 ), temple 0.68 times as long as eye width ( Fig. 1 ). Flagellum of antenna with 21-22 segments; all flagellomeres, excepting the first and apical ones, distinctly elongate, 1.3-1.5 times as long as wide ( Fig. 2 ). Mandible mostly punctate, upper tooth distinctly longer

than lower tooth. Malar space about as long as basal width of mandible. Occipital carina slightly raised in its lower part, after the juncture with oral carina. Clypeus broad, weakly and evenly convex, smooth, distinctly punctate in its upper 0.6. Face and frons finely granulate and densely punctate. Vertex almost smooth, rath- er densely pubescent. Temple finely and sparsely punctate, smooth and shining.

Mesoscutum finely granulate and very densely punctate. Sternaulus as moderately depressed oblique area, transversely wrinkled ( Fig. 12 ). Mesopleuron distinctly punctate centrally, with finer and denser punctures peripherally, smooth between punc- tures, with smooth impunctate area above sternaulus ( Fig. 12 ). Mesosternum distinctly punctate, smooth between punctures. Basal keel of propodeum well developed, 0.41- 0.46 times as long as apical area ( Fig. 13 ). Spiracle separate from pleural carina by two diameters of spiracle. Dorsolateral area of propodeum finely granulate, distinctly punctate. Apical area punctato-rugulose, weakly pointed anteriorly (at angle of about 85°) ( Fig. 13 ).

Fore wing length 3.65 mm. First section of radial vein longer than width of pterostigma. Metacarp not reaching apex of fore wing. Second recurrent vein postfurcal, unpigmented in its anterior part. Nervellus of hind wing weakly reclivous. Tarsal claws not pectinate.

First tergite length 1.14, posterior width 0.27 mm; tergite very slender, round in transverse section, entirely smooth. Glymma small, round, with short furrow anteriorly, not joined by a furrow to ventral part of postpetiole. Th yridia about twice as long as wide ( Fig. 14 ). Second tergite length 0.45 mm. Ovipositor upcurved, with two dorsal subapical teeth, and three fine teeth ventrally ( Fig. 3 ); sheath 1.57 mm long, about 1.4 times as long as first tergite ( Fig. 11 ).

Coloration. Body black. Palpi, mandible (excepting teeth), lower 1/3 of clypeus, scape and pedicel of antenna ventrally and legs brownish yellow to yellow-brown. Coxae more or less darkened; fore coxa brownish yellow to brownish; mid and hind coxae brownish to dark brown, yellowish ventrally. Hind femur mostly brown, yellow-brown basally, apically and ventrally. Hind tibia and all tarsi usually slightly infuscate. Tegula and pterostigma dark brown. Metasoma behind first segment mostly yellow-brown, darkened dorsally.

Male unknown.

Type material. Holotype female, China, Ningxia Hui Autonomous Region, Liupanshan , 35°24’ N, 106°23’ E, 1820 m, 15.IX.2005, coll. M.-L. Sheng ( GSFPM) . Paratype. Data as in holotype, but 25.VIII.2005, 1 ♀ ( ZISP).

Etymology. From the Latin nitidus (bright, shining).

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 11-14. Diaparsis nitidulentis sp. n., ♀, holotype. 11 general habitus (without wings); 12 mesosoma, postero-lateral view; 13 propodeum, dorsal view; 14 tergites 1-2, dorsal view.