Metopius (Metopius) ethiopicus, 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 : 1645-1646

Metopius (Metopius) ethiopicus nov.sp.

H o l o t y p u s:(♀) Harrar, Abyssinia (R.E. Turner) 1912-21 (London).

P a r a t y p e s:(♀) Harrar, Abyssinia ( R. E. Turner) 1912-21; (6) Ethiopia Addis Ababa 8000 ft, 3- 18.viii.45, K.M. Guichard; (6) Ethiopia Addis Ababa 7000´5.v.46, K.M. Guichard; (366) Harrar , Abyssinia ( R. E. Turner) 1911-355; (466) Harrar , Abyssinia ( R. E. Turner) 1912-21 (all London) .

T a x o n o m i c a l r e m a r k Related to M. erithreae MORLEY, 1912, but differs by its strongly narrowed temple, wider area centralis, and very short wing-like lateral extension of scutellum ( fig. 32 ).

D e s c r i p t i o n o f ♀:

Body length 10-13 mm. Flagellum with 52-54 segments. Temple roundly narrowed, 0.6x as long as eye. Interantennal lamella high, with strong subdistal indentation and very small distal tooth. Eyes convergent ventrally. Sides of facial shield narrowed ventrally and pointed basally, with coarse puncture, length 1.15x width. Second maxillary palpomere club-shaped, 1.7x as long as wide. Frons coarsely rugose-punctate. Distance of lateral ocellus to eye 2.0x its diameter.

Mesosoma with whitish hairs. Side of pronotum punctate, with coarse striation anteriorly. Epicnemial carina ends below sternaulus. Scutellum very short und wide, lateral wing-like carina not or slightly exceeding the median apical margin ( fig. 32 ). Area centralis of propodeum 1.5x longer than wide, open caudally, costula more or less distinct. Hind femur length 3.1-3.2x height. Hind metatarsus 0.45x as long as hind tibia, outer tibal spur 0.42x as long as hind metatarsus. Front and middle claws with small basal teeth. Areolet ± stalked, 2.1x wider than long, second recurrent vein lateral its middle and with one bulla.

First tergite with dentiform extension ventrally to spiracle and narrow lateral lamella, dorsal carina strong and extended almost to apex. Second tergite 1.05x as long as wide. Second and third tergites with tooth-like posterolateral edges, following tergites with rounded edges.

Color: Black. Flagellum reddish. Reddish are palps, mandibles, labrum, clypeus medially, face, facial shield, frontal orbit up to anterior ocellus, scape and pedicel ventrally, and spot on subtegular ridge, sometimes fifth tergite apically, and sixth tergite completely. Yellow are apical half of scutellum and apical bands on second to fourth tergites (narrowed medially). Coxae and trochanters black. Legs otherwise reddish,

femur III with blackish suffusion or mainly black and apically reddish. Pterostigma yellow-brown. Wings slightly infuscate, apex of front wings slightly darker.

D e s c r i p t i o n o f 6:

Body length 10-14 mm. Flagellum with 50-58 segments. Temple roundly narrowed, seen from dorsal about 0.7x as wide as eye. Interantennal lamella high, with subdistal indentation and small distal tooth. Facial shield with ventrally narrowed sides, pointed ventrally, coarsely punctate, length 1.0-1.15x width ( fig. 17 ). Second maxillary palpomere club-shaped, 1.7x as long as wide. Frons coarsely rugose-punctate. Distance of lateral ocellus to eye 1.7x its diameter.

Hind femur length 2.8-3.2x height. Hind metatarsus 0.45x as long as hind tibia, outer tibal spur 0.40-0.45x as long as hind metatarsus. Front and middle claws with small basal teeth. Second recurrent vein lateral its middle and with one or rarely two bullae.

First tergite with dentiform extension ventrally to spiracle and narrow lateral lamella, dorsal carina strong and extended almost to apex. Second tergite with tooth-like posterolateral edges, following tergites with rounded edges.

Color: Black. Flagellum reddish. Yellow are palps, base of mandibles, labrum, clypeus, face, facial shield, frontal orbit up to anterior ocellus, scape and pedicel ventrally, in larger specimens sometimes upper margin of pronotum, spots on subtegular ridge and mesopleuron, prescutellar carina, apical 2/3 of scutellum, postscutellum and posterolateral propodeal spots, posterolateral spots on first tergite, and apical bands on all following tergites (narrowed medially), apical band of hypopygium and parameres. Legs black. Front and middle coxae, all trochanters and front and middle femora yellow frontally. Front and middle tibiae and tarsi entirely yellow. Middle femur with yellowish spots basally and apically. Hind tibia and tarsus chestnut-brown. Pterostigma yellowbrown. Wings slightly infuscate, apex of front wings slightly darker.

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

Figures

Figs. 32-33: Scutellum of: (32) Metopius ethiopicus nov.sp. ♀; (33) M. clathratus BENOIT 6

Figs. 13-18: Face and facial shield of 66: (13) Metopius alboornatus CAMERON; (14) M. brevicornis SEYRIG; (15) M. clathratus BENOIT; (16) M. rauschi nov.sp. HT; (17) M. ethiopicus nov.sp. PT; (18) M. rufigaster ssp. zambiense nov.ssp. HT.