Magwengiella congica, Heinrich, 1967

Riedel, Matthias & Pos, Davide Dal, 2019, Contribution to the AIrotropical Ɨchneumoninae (Hymenoptera, Ɨchneumonidae) Irom Gabon and Sierra Leone, with descriptions oI Iive new species and two new subspecies, Linzer biologische Beiträge 51 (1), pp. 419-436 : 428-429

Magwengiella congica HEINRICH, 1967, new male (figs 12, 16) M a t e r i a l e x a m i n e d: ♂ " Gabon - prov. Ogooué-Ivindo, Parc National de ĺ Ivindo ,

station de Ipassa , 0°30́45́́N 12°48́10́́ E, 20/29.II. 2012, leg. M. Pavesi (MSNM, Milan ).

D e s c r i p t i o n: ♂. Body length 11.5 mm. Flagellum filiform, with 44 flagellomeres; 1 st flagellomere c.2.2x longer than wide. Tyloids on flagellomeres 8-17, oval, c.0.6x as long as their flagellomeres. Temple rather wide, slightly widened behind eye and moderately narrowed apically, 0.65x as wide as they eye. Distance of lateral ocellus to eye about as long as its diameter. Frons and temple smooth, with very scattered fine punctures. Face and clypeus finely granulate, densely punctate. Clypeus flat and thin, apical margin moderately excised, labrum exposed. Malar space about as long as the width of mandibular base. Mandible with two teeth; lower tooth situated inwards, mandible seen from frontal apparently sickle-shaped. Genal carina reaching the mandibular base.

Side of pronotum mainly smooth and shining, with scattered fine punctures dorsally. Mesoscutum finely granulate but shining, with very scattered punctures; notaulus slightly impressed in frontal 0.2 of mesoscutum. Mesopleuron with dense and fine punctures, partly rugose ventrally; speculum very large and smooth. Metapleuron with rather coarse dense punctures, juxtacoxal carina present. Scutellum slightly wider than long, with complete lateral carina and a strong pyramidal elevation centrally. Propodeum punctate, spiracle slit-shaped. Area basalis not carinate. Area superomedia horseshoe-shaped, slightly longer than wide, almost smooth; costula in its caudal 0.6. Area petiolaris distinctly impressed, transversly rugose, with lateral carina. Hind coxa rugose-punctate; hind femur stout, punctate, c.3.4x longer than wide; hind tibia with several denticular spurs externally, claws not pectinate.

Areolet quadrangular, 2 nd recurrent vein in its middle; nervulus interstitial; nervellus of hind wing strongly reclivous, intercepted in its apical 0.75.

Postpetiolus strongly widened apically, densely punctate, median field slightly elevated but dorsal carina absent. Gastrocoelus impressed; thyridium wide, transverse, c.1.5x wider than the interval. 2 nd tergite c.1.1x wider than long. 2 nd to 4 th tergites coarsely and densely rugose-punctate, median parts with more or less longitudinal rugae; 5 th tergite with superficial punctures.

Color: Black. Flagellum brownish. Ivory are wide side of clypeus, wide facial orbit and narrower frontal orbit, large stripe on outer orbit, frontal and upper margins of pronotum, two short paramedial stripes on mesoscutum, longitudinal stripe on ventral mesopleuron, prescutellar carina, apex of scutellum, postscutellum, carinal triangle, spot on apical metapleuron, area posteroexterna, fore and middle coxae mainly, ventral and dorsal spots on hind coxa. Legs brownish, fore and middle femora cream-yellow ventrally, fore and middle tibiae and tarsi with blackish stripes externally; hind tarsus black. Metasoma reddish; complete 1 st tergite and baso-medial spots in 2 nd and 3 rd tergites black. Wings hyaline, pterostigma blackish.

D i s t r i b u t i o n: Congo, Gabon.