Dissomphalus nus, Mugrabi & Azevedo, 2016

Mugrabi, Daniele F. & Azevedo, Celso O., 2016, Description of 91 new species of DIssomphalus Ashmead (Hymenoptera: Bethylidae) from New Guinea Island and surrounded areas, Mémoires du Muséum national d'Histoire naturelle 209, pp. 451-564 : 523-524

Dissomphalus nus n. sp.

Figures 52, 150, 241, 444-445

TYPE MATERIAL — Holotype, ♂, Papua New Guinea New Britain, S. W. Keravat, 30m, IV-2-1956, J. L. Gressit Collector, ( BPBM). Paratype. Papua New Guinea. 1♂ NE New Guinea, Umboi I, 1 km N Awelkom, 600m, 21-28.II.1967, G. A. Samuelson, Malaise Trap, Bishop ( BPBM).

DESCRIPTION — MALE: Body length 3.0- 3.6 mm. Head and mesosoma black; metasoma castaneous. Head (Figure 52). Mandible with three apical teeth. Clypeus with median lobe subtrapezoidal; median tooth subangulate, outlined by carina; median carina distinctly incomplete apically and straight in profile. Frons strongly coriaceous. Mesosoma. Pronotal disc with anterior margin ecarinate, strongly coriaceous. Metapectal-propodeal complex with lateral and posterior areas partly carinate. Metasoma (Figure 150). Tergal process with shallow or deep, longitudinally elliptical and sublateral pair of depression, 0.32-0.42 x as long as tergite II, diverging posterad, with long and thin or thick setae on lateral area, inner

margin of depression slightly or strongly higher then median region of tergite II; each depression with small or large tubercle on its anterior area, evenly wide in longitudinal section, low, entirely laterad, with broad pit on top, with small few setae posterad. Hypopygium (Figure 241) with median stalk evenly narrow, 0.91 x as long as hypopygial plate; lateral stalk triangular; posterior margin convex and excavated medially. Genitalia (Figures 444-445). Aedeagal dorsal body with apex lower than parameral apex, evenly wide, narrowing abruptly apicad. Aedeagal ventral ramus with apex as high as aedeagal dorsal body apex; apical region subangled and smooth, almost as wide as median region. Digitus very large. Genital ring slightly produced, each half convex in dorsal view.

FEMALE: Unknown.

ETYMOLOGY — The noun in apposition nus means nose in Tok Pisin.