Clistopyga jakobii Graf, 1985

Bordera, Santiago, Palacio, Edgard & Herrera-Flórez, Andrés Fabián, 2025, The Neotropical species of Clistopyga (Hymenoptera, Ichneumonidae, Pimplinae). Part VI: the C. calixtoi species group, with the description of twenty-four new species, Zootaxa 5662 (1), pp. 1-115 : 51-54

16. Clistopyga jakobii Graf, 1985

( Figs 24 , 25 , 53 , Appendix I)

Clistopyga jakobii Graf, 1985: 349 . Holotype: ♀, Brazil (DZUP).

Diagnosis. Clistopyga jakobii may be distinguished from all other species of the C. calixtoi species group by the following combination of characters: genal orbit interrupted by dark brown or black ( Figs 24A–B, 24D ); mesosoma extensively orange ( Figs 24A–C ); pronotum mostly blackish brown and white cream ( Figs 24A–C ); propodeum laterally broadly yellow cream ( Figs 24A–C ); hind femur white cream with subbasal and subdistal lateral brown marks ( Figs 24A–B ); metasoma mostly dark brown, with posterior well defined white cream wide bands on tergites I–V ( Fig. 24A–B, 24E ); tergite I usually with lateral and posterior white cream marks ( Figs 24E, 24G ); tergite II about 1.2× with very shallow setiferous punctures Tergite II about 1.2× as long as posteriorly broad, with shallow setiferous punctures, distance between punctures more than its diameter ( Fig. 24E ); hypostomal carina not lamelliform behind mandible; epomia strong and short, vertical ( Fig. 25A , arrow); metapleuron 2.85–2.95× as long as high ( Figs 24C , 25C ); submetapleural carina absent ( Figs 24C , 25C ); fore wing with abscissa of Cu 1 between 1 m-cu and Cu 1 a about 1.75× as long as Cu 1 b; hind wing with distal abscissa of Cu 1 slightly insinuated. Ovipositor sheath basally without denticles on ventral margin.

Description. Female: Body length 8.4–8.7 mm. Fore wing length 5.1–5.7 mm.

Head ( Figs 24A–B, 24D ). In dorsal view, moderately narrowed behind eyes. Gena shiny with sparse setiferous punctures, in dorsal view slightly rounded, about 0.25× as long as eye; in frontal view moderately constricted below the eyes, almost straight in profile. Frons and vertex smooth and shiny, with very isolated setiferous punctures. Posterior ocellus separated from eye by 0.95–1.0× its own maximum diameter. Distance between hind ocelli about 0.85× maximum diameter of posterior ocellus. Hypostomal carina not lamelliform behind mandible. Clypeus slightly convex, 1.9–2.2× as broad as medially long, with apical margin weakly concave. Face with shallow, fine and moderately sparse punctures, distance between them much more than its diameter. Malar space 0.9–1.0× as long as basal mandibular width with a slightly granulate subocular sulcus. Antenna with 28-29 flagellomeres, first flagellomere about 7.2× as long as medially wide.

Mesosoma ( Figs 24A–B, 24C, 24F , 25A–C ). Pronotum smooth and shiny with very few setiferous punctures on posterior corner. Epomia strong and short, vertical. Mesoscutum smooth and shiny with scattered moderately long setae; anterior half of median lobe not conspicuously prominent, confluent with posterior half. Notaulus weak reaching about 0.5 the length of mesoscutum. Mesopleuron smooth and shiny, except for fine scattered punctures ventrally. Epicnemial carina strong, its dorsal end slightly curved towards the back, ending at level of centre of pronotum. Metapleuron smooth and shiny, with very shallow and isolated setiferous punctures, 2.85–2.95× as long as high. Submetapleural carina absent. Propodeum smooth and shiny with very sparse and isolated fine setiferous punctures, in dorsal view about 1.4× as long as medially wide. Propodeal spiracle about 0.2–0.26× the length to anterior end of pleural carina. Hind leg with femur about 3.8× as long as high, 1.2× as long as tibia. Fore wing with vein cu-a opposite to Rs & M; vein 2 rs-m about 0.55× as long as abscissa of M between 2 rs-m and 2 m-cu; abscissa of Cu 1 between 1 m-cu and Cu 1 a about 1.75× as long as Cu 1 b. Hind wing with vein cu-a about 0.25× as long as abscissa of Cu 1 between M and cu-a, vein cu-a reclivous, first abscissa of Cu 1 inclivous; distal abscissa of Cu 1 present, weakly insinuated.

Metasoma ( Figs 24A–B, 24E, 24G–H , 25D ). Tergite I 1.45–1.55× as long as posteriorly broad, shiny, with very sparse shallow setiferous punctures laterally and posteriorly, spiracle near its anterior 0.38; lateromedian longitudinal carinae strong at anterior 0.2 of tergite; lateral longitudinal carinae absent. Sternite I extending posteriorly about 0.6 the length of tergite. Tergite II about 1.2× as long as posteriorly broad, with shallow and moderately sparse setiferous punctures, distance between punctures more than its diameter, punctation of posterior tergites tending to be denser. Ovipositor evenly up-curved at posterior 0.3, 2.4–2.5× as long as hind tibia. Ovipositor sheath 2.0–2.1× as long as hind tibia, ventral margin basally without denticles, length of setae on average 1.7–2.0× the sheath basal width.

Colouration ( Fig. 24 ). Head black with clypeus, malar space, face, frontal and vertical orbits, ventral part of gena and mouthparts except apex of mandibles, white cream. Antenna blackish, scape, pedicel and flagellomeres I to IV, ventrolaterally white cream. Mesosoma mostly orange; ventral part of propleuron, dorsal and ventral lateral bands of pronotum, tegula, scutellum, postscutellum, subalar prominence, mesepimeron and sides of propodeum, white cream; dorsal part of propleuron, mid lateral part of pronotum, axillae, dorsal part, and anterior and posterior margins of propodeum, and metasternum, dark brown to black. Metasoma dark brown; tergites I–V anterolaterally and posteriorly widely banded white cream; tergites II–IV with lateral posterior black spots; ovipositor dark brown; ovipositor sheaths black. Legs predominantly white cream; front leg with dorsal stripe on femur, tibia and distal part of tarsi, brown; mid leg with base of trochanter, dorsal stripe on femur and tibia and distal part of tarsi brown; hind leg with anterior and posterior spots on coxa, base of trochanter, distal part of trochantellus, base and lateral subdistal marks on femur, basal and distal part of tibia, and distal part of tarsi, brown. Wings hyaline, pterostigma brown.

Male: Unknown.

Remarks. This species was reported by Padua & Nunes (2017) from São Paulo State ( Brazil). In the diagnosis they mention, based in Graf (1985), that the occipital carina is raised and forming a dorso medial flange. This is a distinctive character of the C. chaconi species group, and this is clearly a mistake, since it does not appear in Graf’s description, nor can it be seen in the image provided in the work. This species lacks the raised occipital carina ( Figs 24D , 25A ).

Material examined.

Type material (3 ♀♀). Holotype. Brazil : ♀, Paraná, Curitiba, Capão de Imbuia , A.F. Yamamoto leg., Malaise trap, 9–15.XII.1978 . Paratypes: 1 ♀, same locality, A.F. Yamamoto leg., Malaise trap, 30-IX/ 6-X-1978 ( DZUP) ; 1 ♀ Brazil, “BR. 277”, Km 8, A.F. Yamamoto leg., Malaise trap, 28-I/ 3-II-1979 ( DZUP) .

Distribution. Brazil ( Fig. 53 , Appendix I).

Figures

FIGURE 24. Clistopyga jakobii, female: (A) habitus (lateral view, holotype); (B) habitus (lateral view, paratype); (C) mesosoma (lateral view, holotype); (D) head (dorsal view, holotype); (E) tergites I-II (dorsal view, holotype); (F) propodeum (dorsal view, holotype); (G) tergites I-II (lateral view, holotype); (H) ovipositor (lateral view, holotype). Scale bar: 1 mm (A, B); 0.5 mm (C, E, H); 0.3 mm (F, G); 0.2 mm (D).

FIGURE 25. Clistopyga jakobii, female (paratype, SEM images): (A) epomia (arrow); (B) mesopleuron (epicnemial carina, arrow); (C) metapleuron and propodeum (lateral view); (D) metasoma (dorsal view). Scale bar: 0.5 mm (D); 0.2 mm (A, B, C).

FIGURE 53. Geographic distribution of C. calixtoi species group: C. angustipleura sp. nov., C. jakobii Graf, C. kogabae sp. nov., C. laplatense sp. nov., C. magninsula Higa & Penteado-Dias, C. subtenella sp. nov.