Diaparsis (Diaparsis) umbrosa Khalaim & Sääksjärvi, 2014

Khalaim, Andrey I., Sääksjärvi, Ilari E. & Roininen, Heikki, 2014, Three new Afrotropical species of Tersilochinae (Hymenoptera: Ichneumonidae) from the Kibale National Park, Uganda, Zootaxa 3794 (4), pp. 536-544 : 541-543

Diaparsis (Diaparsis) umbrosa Khalaim & Sääksjärvi , sp. nov.

( Fig. 14)

Comparison. In the key to the Afrotropical species of Diaparsis ( Khalaim 2013a) the new species runs to D. robusta Khalaim in the couplet 9, but may be distinguished from this species by the shorter malar space, much shorter antennal flagellomeres, propodeum with apical area anteriorly rounded, and the darker metasoma.

Description. Female. Body length 3.6 mm. Fore wing length 2.75 mm.

Head roundly tapered behind eyes in dorsal view; temple 0.6× as long as eye width. Flagellum of antenna filiform, with 16 segments; all flagellomeres, excepting the basal and apical ones, weakly elongate, 1.1–1.3× as long as broad. Mandible slender, with upper tooth much longer than lower tooth. Malar space 0.5–0.6× as long as basal width of mandible. Clypeus lenticular, slightly convex in lateral view, almost 3.0× as broad as long, smooth, finely punctate in upper 0.6. Face and frons finely and densely punctate on granulate background, dull. Vertex finely granulate, with fine and sparse punctures, dull. Temple very finely granulate, with very fine and sparse punctures, weakly shining. Occipital carina complete. Hypostomal carina absent.

Mesoscutum densely and distinctly punctate on finely granulate background, dull. Notaulus with very strong wrinkle extending from anterolateral margin of mesoscutum. Mesopleuron peripherally granulate and finely punctate, centrally rather densely punctate on almost smooth background, with impunctate area just above the foveate groove. Foveate groove situated in anterior half of mesopleuron, strongly oblique, weak (in paratypes) to moderately deep (in holotype), with transverse wrinkles. Propodeal spiracle enlarged, separated from pleural carina by almost 2.0× diameter of spiracle. Dorsolateral area of propodeum granulate, with very fine (sometimes indistinct) punctures. Propodeum with distinct basal keel which is about 0.6× as long as apical area; apical area very widely rounded anteriorly, flat, granulate, impunctate; apical longitudinal carinae anteriorly weak but usually reaching transverse carina.

Fore wing with first abscissa of radius almost straight, almost as long as width of pterostigma. Metacarp distinctly not reaching apex of fore wing. Second recurrent vein postfurcal. Intercubitus short, much shorter than abscissa of cubitus between intercubitus and second recurrent vein. Hind wing with nervellus distinctly reclivous.

Legs slender. Hind femur 3.9× as long as broad and 0.85× as long as tibia. Spurs of hind tibia almost straight. Tarsal claws slender, not pectinate.

First metasomal tergite slender, round in cross-section, entirely smooth, 3.5× as long as posteriorly broad, without glymma. Second tergite 1.5× as long as anteriorly broad. Thyridial depression distinct, about 1.5–1.7× as long as broad. Ovipositor weakly upcurved, with very shallow dorsal subapical depression; sheath about 1.2× as long as first tergite and slightly longer than hind tibia.

Head, mesosoma and first metasomal segment black; lower 0.3 of clypeus, palpi, mandible (except blackish teeth) and tegula brownish yellow. Antenna with scape and pedicel brownish, flagellum blackish (somewhat paler basally). Pterostigma dark brown. Legs predominantly yellow-brown; mid coxa brown; hind leg with coxa dark brown, femur brown to dark brown, and tibia apically sometimes infuscate. Metasoma behind first tergite dark brown.

Male. Unknown.

Etymology. Named after the Latin word umbrosus (shady, shadowy), on account of dark coloration of the body.

Material examined. Holotype female ( ZMUT), Uganda, Kibale National Park, Kanyawara , forest compartment K31, 6–13.XII.2012, coll. H. Roininen et al.

Paratypes. Uganda: 1 ♀ ( ZISP) same data as holotype. 1 ♀ ( ZMUT) same data, but 28.IX–4.X.2012.

Distribution. Uganda.