Syzeuctus kasparyator AUBERT , 1977

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 : 1050-1052

Syzeuctus kasparyator AUBERT, 1977 , new ♂ (Figs 76, 120)

O r i g i n a l: Syzeuctus kasparyator AUBERT, 1977: 36 .

H o l o t y p e: (♀) "Kharykin, Kazachstan, Rudolph, 27-VI-1951, leg. Kasparyan" (St. Petersburg), type not studied.

S t u d i e d m a t e r i a l: 4♀♀, 6♂♂; Iran *, Jordania*, Kazakhstan, Turkey *, Uzbekistan *.

D e s c r i p t i o n: ♀: Body length 8.5-10.5 mm. Antenna with 36-40 flagellomeres;

1 st flagellomere 4.4× longer than wide and 0.48-0.53× as long as eye; preapical flagellomere square. Temple strongly and roundly narrowed behind eye; dorsally 0.45× as long as eye. Ocelli large: OED 0.9-1.0× and OOL 1.7× ocellar diameter. Frons distinctly swollen laterally and impressed medially, with scattered punctures, almost smooth above antennal sockets. Clypeus 1.6× wider than long. MI 0.4-0.5. Genal carina slightly lamelliform ventrally, reaching mandibular base.

Mesosoma with coarse punctures, 1.45× longer than high. Frontoventral edge of pronotum strongly curved, lateral pronotal groove smooth. Speculum partly smooth. Epicnemial carina slightly elevated, with dentiform lamella on transversal part. Propodeum densely and coarsely rugose-punctate; apical transversal carina shortly present laterally, absent or weakly indicated by irregular rugae medially. Hind femur 5.3-5.9× longer than wide. Hind metatarsus 0.67× as long as hind femur. 2 nd hind tarsomere c. 1.6× longer than 3 rd hind tarsomere. Hind claw with short basal teeth, moderately curved apically. Areolet stalked; 2 nd recurrent vein distal to its middle. Nervulus postfurcal by 1- 2× its width. Hairs on basal cell shorter than their intervals. Hind wing with 8 distal hamuli.

1 st tergite 2.1-2.5× longer than wide, with scattered fine setiferous punctures. 2 nd tergite 1.2-1.35× longer than wide, with fine scattered setiferous punctures. 3 rd tergite 1.15-1.2× longer than wide, with fine dense punctures. Ovipositor 0.75-0.85× as long as fore wing, 0.8-1.0× as long as metasoma and 1.8-1.9× as long as hind tibia.

Color: Black. Flagellum reddish, basal flagellomere blackish. Clypeus reddish-yellow. Head yellow; median stripe of frons, stemmaticum and occiput black. Mesosoma yellow, spot on collare, three stripes on mesoscutum, scuto-scutellar groove, band on collare, ventral and posterior margins of pronotum, margins of mesopleuron, mesosternum mainly, margins (except posterior one) of metapleuron and two oblique paramedian stripes on propodeum black. Tergites black, 1 st to 5 th tergites with wide yellow apical bands, 1 st tergite with basal yellow band. 2 nd and 3 rd tergites with antero-lateral yellow spots. Fore and mid legs completely yellow. Hind leg black; hind coxa yellow dorsally; hind trochantellus yellow; hind femur narrowly yellow at apex (reddish with yellow stripe in Iranian ♀); hind tibia yellow in basal 1/5. Wings hyaline, fore wing with distinct apical brown spot; pterostigma brown.

♂: Body length 7.5-9.5 mm. Antenna with 37-39 flagellomeres; 1 st flagellomere 4.2-5.3× longer than wide and 0.57-0.62× as long as eye. Head with very coarse punctures. Temple shortly parallel behind eye, distinctly narrowed apically; dorsally 0.35× as long as eye. OED 0.8-1.0× and OOL 2.0× ocellar diameter. Frons distinctly swollen laterally and impressed medially. Clypeus 1.6× wider than long. MI 0.6-0.65. Genal carina slightly elevated ventrally, reaching mandibular base.

Mesosoma with very coarse punctures, 1.5× longer than high. Lateral pronotal groove punctate. Speculum partly smooth. Epicnemial carina low, with low carina on transversal part. Apical transversal carina absent or shortly present laterally. Hind femur 5.3-5.9× longer than wide. Hind metatarsus 0.7× as long as hind femur. 2 nd hind tarsomere c. 1.35- 1.45× longer than 3 rd hind tarsomere. Hind claw with short basal teeth. Areolet stalked; 2 nd recurrent vein distal to its middle. Nervulus postfurcal by 2× its width. Hairs on basal cell shorter than the distance between them.

1 st tergite 2.6-2.8× longer than wide, with very scattered fine setiferous punctures. 2 nd tergite 1.5-1.7× longer than wide, with fine scattered setiferous punctures. 3 rd tergite 1.3- 1.5× longer than wide, with fine scattered punctures. 1 st to 6 th tergites with strongly enlarged, reniform tergal spiracles.

Color: Black. Antenna blackish or reddish ventrally. Head yellow; clypeal margins, median stripe of face, frons medially, stemmaticum and occiput black. Mesosoma yellow, spot on collare, three stripes on mesoscutum, scuto-scutellar groove, band on collare, ventral and posterior margins of pronotum, margins of mesopleuron, mesosternum mainly, margins (except posterior one) of metapleuron and two oblique paramedian stripes on propodeum black. Tergites black, 1 st to 4 th /6 th tergites with wide yellow apical bands, 1 st tergite also with subbasal yellow band, 2 nd and 3 rd tergites with basal yellow band or spots. Fore and mid legs yellow; mid coxa black basally; fore and mid femora sometimes with ± brownish dorsal stripes; mid tarsus brown. Hind leg black; hind coxa yellow dorsally; hind trochantellus sometimes yellow; hind femur narrowly yellow at apex (reddish with yellow stripe in Iranian ♂); hind tibia yellow in basal 1/3- 2/3. Wings hyaline, fore wing with apical brown spot; pterostigma brown.

Hosts unknown.

R e m a r k: Due to the extended tergal spiracles, the new ♂ resembles S. dusmeti SEYRIG. It differs by smaller size, smaller and roundish tergal spiracles, shorter malar space, larger ocelli, black apical tergites and scattered punctures on basal tergites.