Syzeuctus kabzabi, 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 : 1049-1050

Syzeuctus kabzabi nov.sp. (Figs 38, 77, 121)

H o l o t y p e: (♀) " Mongolia, Chovd aimal, 3 km N von Somon Uenc im Tal Uenc gol, 1450 m, Exp. Dr. Z. Kaszab, 1966; Nr 622, 3.VII.1966 " (Budapest) .

P a r a t y p e s: (♀) labeled as on the holotype (Budapest); (♀) " Mongolia, Chovd aimal, 3 km N von Somon Uenc im Tal Uenc gol, 1450 m, Exp. Dr. Z. Kaszab, 1966; Nr 614, 2-3.VII.1966 " (Budapest) .

S t u d i e d m a t e r i a l: 3♀♀; Mongolia *.

D e s c r i p t i o n: ♀: Body length 9.5-14 mm. Antenna with 34-42 flagellomeres; 1 st flagellomere 4.8-5.0× longer than wide and 0.6× as long as eye; preapical flagellomere 1.4× longer than wide. Temple moderately and roundly narrowed behind eye, dorsally c. 0.5× as long as eye. OED 1.4-1.6× and OOD 1.9× ocellar diameter. Vertex almost smooth. Frons with scattered punctures, slightly swollen laterally and impressed medially. Face densely punctate, with parallel sides. Clypeus 1.6-1.7× wider than long, with scattered punctures, apical margin rounded. MI 0.75-0.85. Genal carina reaching mandibular base.

Mesosoma 1.45× longer than high. Frontoventral edge of pronotum strongly curved; lateral pronotal groove smooth. Epicnemial carina slightly elevated, with denticular lamella on transversal part. Mesoscutum, mesopleuron including speculum and metapleuron densely punctate. Propodeum with complete apical transversal carina. Hind femur 5.3-5.6× longer than wide. Hind metatarsus 0.75× as long as hind femur. 2 nd hind tarsomere 1.25× longer than 3 rd one. Hind claw long and slender, with short teeth, moderately curved apically. Areolet stalked; 2 nd recurrent vein almost in its middle. Nervulus postfurcal by 1× its width. Hairs on basal cell slightly shorter than their intervals. Hind wing with 10 distal hamuli.

1 st tergite 1.55-1.7× longer than wide, with scattered fine or coarser setiferous punctures laterally. 2 nd tergite 1.1-1.35× longer than wide, with scattered or rather dense punctures. 3 rd tergite 1.0-1.3× longer than wide, with fine superficial punctures. Ovipositor 1.75× longer than fore wing, 1.9× longer than metasoma and 4.9× longer than hind tibia.

Color: Largely dark brownish-red. Head black, face reddish centrally. Spot on mandible and clypeus yellow-red. Inner orbit, vertical and outer orbits cream-yellow. Mesosoma black, with ± extended reddish-brown suffusion on propodeum, mesopleuron and metapleuron. Collare, upper margin of pronotum, large hook-shaped anterolateral stripe and central spot on mesoscutum, tegula, subtegular ridge, scutellum except anteromedian black spot and lateral spot on propodeum cream-yellow. Metasoma red or reddish-brown, 1 st to 3 rd tergites with diffuse reddish or yellowish apical bands. Legs including coxae and trochanters reddish; fore and mid coxae and trochanters often with yellow spots; fore trochantellus yellow, fore leg with frontal yellow stripe; hind tibia yellow basally. Fore wing with subapical brown spot. Pterostigma brown, cream-yellow proximally.

♂ and hosts unknown.

R e m a r k: This new species is characterized by its slender red metasoma, long ovipositor, long and moderately curved claws, and distinct subapical brown spot on fore wing.