Syzeuctus szilagysagiensis KISS, 1926

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 : 1068-1069

Syzeuctus szilagysagiensis KISS, 1926 (Figs 48, 89, 135)

O r i g i n a l: Syzeuctus szilagysagiensis KISS, 1926a

H o l o t y p e: (♀) " Szilágycseh Dr. Z. Kiss; Typus; Syzeuctus elegans SZÉPL. det. Bajari " (Budapest), type studied .

syn. Syzeuctus elegans SZÉPLIGETI, 1899: 30 , preoccupied by Meniscus (recte: Syzeuctus ) elegans CRESSON, 1870 .

H o l o t y p e: (♀) "Fonyod; elegans; Holotypus Syzeuctus elegans SZÉPL. ♀ Papp 1970" (Budapest), type studied .

S t u d i e d m a t e r i a l: 16♀♀, 22♂♂; Austria, Croatia *, France, Hungary, Italy *, Serbia *.

D e s c r i p t i o n: ♀: Body length 10-11 mm. Antenna with 41-43 flagellomeres; 1 st flagellomere 4.3-4.7× longer than wide and 0.57× as long as eye; preapical flagellomere 1.1× longer than wide. Temple strongly and roundly narrowed behind eye, dorsally 0.35- 0.45× as long as eye. OED 1.3-1.6× and OOD 2.3× ocellar diameter. Frons densely punctate, ± swollen laterally, moderately impressed medially or with median rim, ± smooth above antennal sockets. Face densely punctate. Clypeus 1.7-2.0× wider than long, with scattered punctures, apical margin rounded. Mandible with ventral lamella. MI 0.5-0.65. Genal carina reaching mandibular base.

Mesosoma 1.4-1.6× longer than high. Pronotum densely punctate, lateral pronotal groove ± smooth. Speculum punctate. Epicnemial carina low, without or with low carina on transversal part. Apical transversal carina of propodeum absent or indicated by some indistinct transversal rugae. Hind femur 5.0-5.9× longer than wide. Hind metatarsus 0.65-0.75× as long as hind femur. 2 nd hind tarsomere 1.35-1.45× longer than 3 rd one. Hind claw densely pectinate, strongly bent apically. Areolet stalked; 2 nd recurrent vein in or distal to its middle. Nervulus postfurcal by 1-2× its width. Hairs on basal cell about as long as their intervals. Hind wing with 8 distal hamuli.

Metasoma slender; 1 st tergite 2.0-2.2× longer than wide, with scattered punctures. 2 nd tergite 1.15-1.4× longer than wide, with dense sometimes superficial punctures. 3 rd tergite 1.0-1.5× longer than wide, with dense punctures. Spiracles of 2 nd and 3 rd tergites ± protruding. Ovipositor 1.05-1.2× longer than fore wing, 1.15-1.3× longer than metasoma and 2.4-2.7× longer than hind tibia.

Color: Black. Flagellum usually reddish. Palps, clypeus in apical 2/3, often vertex opposite to lateral ocellus and outer orbit (sometimes black), tegula, often spot on subtegular ridge, sometimes spot on collare, apico-lateral or apical spot on scutellum, postscutellum ± and sometimes 1 st tergite basally yellow. Metasoma black, sometimes 1 st to 3 rd tergites basally and apically reddish or yellowish or ± red-yellow, 2 nd and 3 rd tergites often with narrow yellow apical bands. Coxae black, sometimes yellowish apically; sometimes hind trochanter black; usually trochanters ± and all trochantelli yellow. Legs reddish; fore and mid legs yellow frontally; hind femur red or brownish, often yellow apically. Hind tibia yellow basally, ± brown apically, hind tarsus ± brown. Fore wing with apical brown spot, pterostigma ochreous or brown.

♂: Body length 9-10.5 mm. Antenna with 42-46 flagellomeres, 1 st flagellomere 5.0× longer than wide and 0.62× as long as eye. Temple roundly narrowed behind eye, with scattered punctures. OED 1.2-1.6× ocellar diameter. Clypeus 2.0-2.1× wider than long. MI 0.65-0.75 (1.0). Hind femur 5.3× longer than wide; hind metatarsus 0.75× as long as hind femur. 2 nd hind tarsomere 1.4× longer than 3 rd one. Hind claw strongly bent apically.

1 st tergite 2.5-2.6× longer than wide, with rather dense setiferous punctures. 2 nd tergite 1.35-1.50× longer than wide, with dense punctures. 3 rd tergite 1.30-1.35× longer than wide, with dense punctures. Spiracles of 2 nd and 3 rd tergites protruding laterally; 2 nd to 6 th tergites with moderately enlarged, roundly or oval spiracles.

Color: Black. Flagellum reddish, basal flagellomere ± black. Spot on mandible, clypeus in lower 1/2, inner and outer orbits, sometimes paramedian stripes of face, spot on collare, tegula, subtegular ridge, anterolateral spot on mesoscutum, lateral spot or entire scutellum, sometimes postscutellum, spots and sometimes transverse subapical stripe on propodeum, stripes on fore and mid coxae and trochanters, and all trochantelli entirely yellow. Tergites blackish, often 1 st tergite basally and apically and 2 nd and 3 rd tergites apically with narrow yellow bands. Fore and mid femora, tibiae and tarsi yellowish; hind coxa black, sometimes yellow apically; hind leg otherwise red, hind tibia basally or entirely yellow, slightly infuscate apically. Mid and hind tarsi ± brown. Fore wing hyaline or with weak apical spot; pterostigma brownish.

Hosts unknown.