Metopius (Metopius) gambiense, Riedel, 2016

Riedel, Matthias, 2016, Contribution to the genus Metopius PANZER (Hymenoptera, Ichneumonidae, Metopiinae) from Africa South of Sahara, Linzer biologische Beiträge 48 (2), pp. 1635-1675 : 1647-1648

Metopius (Metopius) gambiense nov.sp.

H o l o t y p u s:(♀) Gambia: Keneba Malaise, ix-x.1975, M.C.D. Speight (London)

P a r a t y p e s:(♀♀) with identical labels (London).

D e s c r i p t i o n of ♀:

Body length 12-13 mm. Flagellum with 52 segments, preapical segments square. Mandible with one tooth. Second maxillary palpomere club-shaped, about 1.6x as long as wide. Eyes convergent ventrally. Facial shield with slightly narrowed sides, densely punctate and with strong carinae, length 1.05x width, pointed ventrally and with ± distinct longitudinal carina reaching apex of clypeus (fig. 29). Interantennal lamella high, with slight subdistal impression and distinct distal tooth. Frons with fine transversal striation, sometimes punctate. Temple strongly narrowed behind eye, about 0.6x as long as eye.

Mesosoma with long whitish hairs. Pronotum coarsely punctate, striate ventrally, smooth at narrow anterior margin. Epicnemial carina obsolete above sternaulus. Scutellum wide, with scattered puncture, lateral wing-shaped extension short. Central area of propodeum narrow, length 1.5x width, with lateral carina (sometimes faint) and distinct central longitudinal ridge, costula indistinct. Hind femur length 2.5x height. Hind metatarsus about 0.4x as long as hind tibia. Outer apical spur of hind tibia 0.5x as long as hind metatarsus. Front and middle claws with short basal teeth. Areolet stalked, 1.8x wider than long, very oblique, second recurrent vein with one bulla, reaching areolet lateral to the middle.

First tergite wider than long, widest at level of spiracle, with complete dorsal carinae, scuöpture smoothened in the apical half. Its spiracle with denticular extension ventrally and strong lateral lamella behind spiracle. Second tergite as long as wide. Second and third tergites with denticular posterolateral edges, following tergites with rounded edges. Color: blackish or chestnut-brown. Flagellum red. Cream-yellow are palps, clypeus in larger part, face (fig. 29), frontal orbit, scape ventrally, subtegular ridge, small spot on mesopleuron, prescutellar ridge, apical margin of scutellum, postscutellum, posterolateral spot on propodeum, hind margins of all tergites (narrower on apical tergites), spots on all coxae, apical spots on front and middle femora, frontal side of front and middle tibiae and tarsi, hind femur at base and apex. Pterostigma brownish, apex of front wing infuscate.

6 unknown.

D i s t r i b u t i o n: Gambia.