Syspasis leucolomia ( GRAVENHORST , 1829)

Riedel, Matthias, 2021, Revision of the Palaearctic species of Syspasis TOWNES, 1965 (Hymenoptera, Ichneumonidae, Ichneumoninae), Linzer biologische Beiträge 53 (2), pp. 775-810 : 784-785

Syspasis leucolomia ( GRAVENHORST, 1829) (figs 14, 15, 27, 37, 51)

Original: Ichneumon leucolomius GRAVENHORST, 1829: 479. H o l o t y p e: (♀) Oe. (Wroclaw), type not studied. syn. Ichneumon dissectus FONSCOLOMBE, 1847: 404, synonymized by BERTHOUMIEU (1894), not studied. M a t e r i a l e x a m i n e d: 13♀♀ and 3♁♁ from Algeria *, Corse *, France, Italy,

Montenegro *, Sardinia, Sicily, Spain.

D e s c r i p t i o n: ♀: Body length 11 mm. Flagellum with 40-44 flagellomeres, almost filiform; 1 st flagellomere 2.7-3.0× and 2 nd flagellomere 2.0-2.1× longer than wide; widest flagellomeres about square. Temple strongly and roundly narrowed behind eye. OED 1.0-1.1× ocellar diameter. Frons rugose-punctate dorsally. Face densely punctate. Clypeus with scattered punctures, smooth; apical margin with small median tooth. Genal carina sinusoid, weak or absent ventrally; gena distinctly concave in profile, with coarse punctures ventrally, 0.8× as wide as eye. MI 1.0. Mesosoma covered with dense whitish hairs. Side of pronotum with coarse punctures dorsally and coarse striation ventrally and caudally. Notaulus distinctly impressed frontally. Side of mesoscutum with dense, partly scattered punctures, not granulate. Mesopleuron mainly rugose-punctate. Metapleuron rugose-punctate, partly striate. Mesosternum sometimes with scattered punctures. Scutellum about as long as wide, with scattered punctures and lateral carina in basal 0.2-0.5. Area basalis with median tubercle. Area superomedia slightly longer than wide, horseshoe-shaped, punctate; anterior transverse carina ± distinct, reaching area superomedia in its middle. Area externa densely punctate. Area petiolaris rugose-punctate, without lateral carina. Hind coxa densely punctate, without scopa. Hind femur densely punctate, 3.6-4.3× longer than wide. Hind tibia with c. 3 denticular spurs apico-externally. 3 rd mid tarsomere 1.7× longer than wide. Areolet pentagonal, frontal distance between veins 2rsm and 3rs-m 3× their width; vein 2m-cu in its middle. Vein 1cu-a interstitial. Metasoma semi-oxypygous; hypopygium moderately elongate, about as long as the distance from its apical margin to metasomal apex. Postpetiolus strongly widened apically. Lateral field 0.9× as wide as median field, the latter with c. 8 coarse striae. Thyridium transverse, c. 1.5× wider than the interval between thyridia. 2 nd tergite 0.75-0.8× as long as wide. 2 nd to 4 th tergites densely and coarsely punctate, 2 nd tergite longitudinally striate medially (3 rd tergite only in basal half). Ovipositor sheath shortly extending behind metasomal apex (by 0.3× length of 7 th tergite).

Color: black. Stripes or rings on flagellomeres 10-15, frontal and outer orbits, collar and hind edge or upper margins of pronotum, subtegular ridge, sometimes two paramedian stripes on mesoscutum, prescutellar ridge, side of scutellum, spot on postscutellum, and frontal stripe on fore tibia ivory. Coxae and trochanters black; legs otherwise black or red; if red, than hind tibia apically and hind tarsus darkened. Mid tibia and apical spots on fore or mid femora often ivory. Petiolus ± black, postpetiolus apically and 2 nd to 7 th

tergites red. Wings hyaline; pterostigma blackish. ♁: Body length 10-12 mm. Flagellum with 42-45 flagellomeres; 1st flagellomere 2.6×

and 2 nd flagellomere 1.8× longer than wide. Tyloids on flagellomeres 7/8-20/22, linear, maximally as long as the flagellomeres. Temple strongly and almost linearly narrowed behind eye. Occiput strongly excavate medially. Frons partly rugose, smooth ventrally. Face punctate, centrally with granulation. Clypeus large, c. 1.5× wider than long, with scattered punctures; apical margin with small median tooth. Hypostomal carina ± lamelliform elevated. Mesosoma with short whitish hairs. Notaulus distinct frontally. Side of mesoscutum with dense and partly scattered punctures. Mesopleuron punctate, partly rugose. Epicnemial carina slightly elevated. Metapleuron rugose-punctate. Posterior transverse carina of mesosternum with dense comb-like hairs ventrally. Scutellum as long as wide, moderately elevated, with lateral carina in basal 0.3. Area superomedia dome-shaped frontally, longer than wide, punctate or finely rugulose; anterior transverse carina ± distinct, posterior to the middle. Hind coxa densely punctate. Hind femur densely punctate, 4.4-4.6× longer than wide. Fore metatarsus without apical tooth. Areolet almost quadrilateral, frontal distance between veins 2rs-m and 3rs-m 1× width. Vein 2m-cu slightly proximad its middle. Vein 1cu-a interstitial. Postpetiolus strongly widened, lateral field 0.8-1.0× as wide as median field, the latter with 5-8 coarse longitudinal striae. Thyridium slightly oblique, 1.5× as wide as the interval between thyridia. 2 nd tergite 0.80-0.85× as long as wide. 2 nd to 5 th /6 th tergites coarsely punctate, 2 nd and 3 rd tergites and sometimes 4 th tergite aciculate medially.

Color: black. Flagellum reddish ventrally. Palps, mandible except teeth, side of clypeus, facial and frontal orbits, outer orbit (sometimes entire orbit except malar space), scape ventrally, propleuron ±, collar, hind edge and often frontal margin of pronotum, subtegular ridge, often spot on mesopleuron, mesosternum partly, sides and apex of scutellum, postscutellum, spots on fore and mid coxae and fore and mid legs frontally ivory. Femora, tibiae and tarsi reddish-brown; hind femur apically, hind tibia externally and apically and hind tarsus entirely infuscate. Tergites chestnut-red, petiolus and 7 th tergite ± infuscate. Pterostigma dark brown to black.

Hosts: unknown.