Syzeuctus ruficoxis, Riedel, 2021

Riedel, Matthias, 2021, The genus Syzeuctus FÖRSTER in the Western Palaearctic region and Central Asia (Hymenoptera, Ichneumonidae, Banchinae), with descriptions of 17 new species, Linzer biologische Beiträge 52 (2), pp. 1013-1098 : 1067

Syzeuctus ruficoxis nov.sp. ( Figs 22 , 46, 87, 133)

H o l o t y p e: (♀) " Yugoslavia, Zlot 18.7.1989, M. Brajkovic" (Munich).

S t u d i e d m a t e r i a l: 1♀, Serbia *.

D e s c r i p t i o n: ♀: Left flagellomeres from 14 th on, right flagellomeres from 11 th on and 3 rd- 5 th hind tarsomeres of left tarsus missing. Body length 8 mm. 1 st flagellomere 4.2× longer than wide and 0.48× as long as eye. Temple strongly and roundly narrowed behind eye, dorsally 0.35× as long as eye. Ocelli large, OED 0.9-1.0× and OOD 2.1× ocellar diameter. Frons densely punctate, with fine granulation, moderately impressed medially. Face densely punctate, shining. Clypeus 2× wider than long, with scattered punctures and fine granulation, apical margin rounded. MI 0.8. Genal carina reaching mandibular base.

Mesosoma densely punctate. Lateral pronotal groove finely rugulose. Epicnemial carina low, without carina on transversal part. Propodeum with complete apical transversal carina. Hind femur 4.7× longer than wide. Hind metatarsus 0.67× as long as hind femur. 2 nd hind tarsomere 1.55× longer than 3 rd one. Hind claw pectinate, moderately curved apically. Areolet stalked; 2 nd recurrent vein in its middle. Nervulus widely postfurcal by 4× its width. Hairs on basal cell shorter than their intervals. Hind wing with 8 distal hamuli.

1 st tergite 1.7× longer than wide, coarsely and densely punctate. 2 nd tergite 1.1× longer than wide, with dense punctures. 3 rd tergite 1.05× longer than wide, with dense punctures. Ovipositor very long, 2× longer than fore wing, 2.6× longer than metasoma and 4.8× longer than hind tibia.

Color: Black. Spot on facial orbit, narrow stripe on frontal and outer orbits, frontal margin of pronotum, tegula, subtegular ridge and sides of scutellum yellow. Flagellum, clypeus, hind edge of pronotum and legs including all coxae and trochanters red. 1 st to 4 th tergites entirely red. Wings hyaline; pterostigma reddish-brown, pale basally.

♂ and hosts unknown.

R e m a r k: This small new species is characterized by its entirely red legs including coxae and trochanters, red basal tergites and the very long ovipositor.

Figures

Figs 22-23: Habitus from lateral: (22) Syzeuctus ruficoxis nov.sp. HT, (23) S. rufigaster nov.sp. HT. Fig. 24: Mesoscutum of Syzeuctus brevipunctatus nov.sp. HT.