Syzeuctus flavomaculatus, 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 : 1039-1040

Syzeuctus flavomaculatus nov.sp. (Figs 32, 69, 112)

H o l o t y p e: (♀) " Mongolia, Chovd aimak, 10 km SSW von Somon Bulgan, 1200 m, exp. Z. Kabzab, 1966; Nr. 632, 4-6.VII.1966 " (Budapest) .

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

D e s c r i p t i o n: ♀: Body length 10.5 mm. Antenna with 37 flagellomeres; 1 st flagellomere 4.2× longer than wide and 0.55× as long as eye; preapical flagellomere 1.1× longer than wide. Temple strongly and roundly narrowed behind eye, dorsally c. 0.35× as long as eye. OED 1.4× and OOD 1.9× ocellar diameter. Frons coarsely punctate, with moderately swollen sides and strongly impressed center. Clypeus 2.0× wider than long, slightly convex, with scattered punctures, apical margin rounded. MI 0.85. Genal carina reaching mandibular base.

Lateral pronotal groove smooth ventrally. Speculum partly smooth. Epicnemial carina low, with low carina on pleural part and with distinct low lamella on transversal part. Apical transversal carina of propodeum shortly present laterally, widely absent medially. Hind femur 5.5× longer than wide. Hind metatarsus 0.7× as long as hind femur. 2 nd hind tarsomere 1.5× longer than 3 rd one. Hind claw completely pectinate, moderately bent apically. Areolet with long stalk; 2 nd recurrent vein distal to its middle. Nervulus postfurcal by 2× its width. Basal cell densely pilose, hairs longer than their intervals. Hind wing with 8 distal hamuli.

Metasoma rather slender; 1 st tergite 1.95× longer than wide, with very scattered setiferous punctures, shining. 2 nd tergite 1.1× longer than wide, with very scattered fine setiferous punctures. 3 rd tergite 1.0× as long as wide, with scattered fine punctures. Ovipositor 1.2× longer than fore wing, 1.5× longer than metasoma and 2.8× longer than hind tibia.

Color: Black. Flagellum reddish-brown, basal flagellomere black. Head yellow; mandibular teeth, short median stripe on face, narrow median frons, stemmaticum and occiput black. Mesosoma mainly yellow; three stripes on mesoscutum, scuto-scutellar groove, posterior margins of pronotum and mesopleuron (widened at speculum), entire mesosternum, anterior and ventral margins of metapleuron and two oblique paramedian stripes on propodeum black. Tergites black; 1 st to 3 rd tergites with basal yellow bands; 1 st to 5 th tergites with wide apical yellow bands. Fore and mid coxae black basally, yellow apically; fore and mid legs otherwise yellow. Hind coxa black, yellow dorsally; hind trochanter black, hind trochantellus yellow; hind femur red, narrow yellow apically; hind tibia reddish-yellow; hind tarsus reddish-brown. Fore wing with apical brown spot, pterostigma brownish.

♂ unknown.