Clistopyga speculata Bordera & Palacio, 2019

Bordera, Santiago, Palacio, Edgard & Martínez, Juan José, 2019, The Neotropical species of Clistopyga (Hymenoptera, Ichneumonidae, Pimplinae) Part V: the C. diazi species group, with the description of three new species, Zootaxa 4661 (3), pp. 545-565 : 558-563

Clistopyga speculata Bordera & Palacio , sp. nov.

( Figs 1E , 2E , 7 , 8B , 10 )

Diagnosis. Clistopyga speculata may be distinguished from all other species of the C. diazi species group by the combination of the following characters: mesosoma extensively reddish ( Figs 7 A–B); clypeal suture straight ( Fig. 7C ); submetapleural carina absent ( Fig. 2E , arrow).Additionally, female has ocular orbits entirely white cream ( Figs 7 A–D); male may be distinguished by the lower part of gena not concave ( Fig. 10A, 10C , arrows).

Description. Female: Body length 6–11 mm (without ovipositor). Fore wing length 5–8 mm.

Head ( Figs 7 A–D). In dorsal view, moderately narrowed behind eyes. Gena shiny with very sparse setiferous punctures, in dorsal view almost straight, 0.32–0.37× as long as eye ( Fig. 7D ), in frontal view straight and moderately constricted below eyes ( Fig. 7C ). Frons and vertex smooth and shiny, with very isolated setiferous punctures. Posterior ocellus separated from eye once its maximum diameter. Distance between hind ocelli 0.71–0.80× maximum diameter of posterior ocellus. Occipital carina strong and complete. Face with fine, setiferous punctures, distance between punctures at least twice the diameter of punctures. Clypeal suture straight ( Fig. 7C ). Clypeus 1.63–2.1× as broad as medially long, weakly convex dorsally, concave ventrally, apical margin truncate. Clypeal tentorial pits conspicuous ( Fig. 7C ). Malar space 0.9–1.0× as long as basal mandibular width, with a granulate narrow and weak sulcus between eye and mandible. Antenna with 23–28 flagellomeres, first flagellomere 6.0–7.14× as long as wide

Mesosoma ( Figs 2E , 7A, 7B ). Pronotum mostly smooth and shiny with very scattered setiferous punctures in posterior dorsal corner. Epomia strong but short, straight, reaching the anterior submarginal depression of the pronotum. Mesoscutum shiny, with relatively dense shallow setiferous punctures, much more dense on median lobe. Notauli deep, reaching about 0.5 the length of mesoscutum ( Fig. 7B ). Mesopleuron shiny, with moderately dense setiferous punctures, except in posterior part under speculum ( Fig. 7A ). Epicnemial carina strong, its dorsal end straight, reaching level of centre of pronotum. Metapleuron shiny, with setiferous punctures separated less than two times its diameter, 2.54–2.78× as long as high. Submetapleural carina absent ( Fig. 2E ). Propodeum very tightly and very finely transversally strigose, with setiferous punctures laterally, in dorsal view 1.25–1.35× as long as medially wide ( Fig. 7B ). Propodeal spiracle barely above the groove separating propodeum and metapleuron, continuity of groove not interrupted by spiracle ( Figs 2E , 7A ). Hind leg with femur 3.7–4.0× as long as high, 1.05–1.1× as long as tibia. Fore wing with vein cu-a opposite Rs & M; vein 2 rs-m 0.30–0.36× 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 1.13–1.27× as long as Cu 1 b. Hind wing with vein cu-a 0.33–0.39× 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 conspicuously pigmented.

Metasoma ( Figs 7 E–G). Tergite I 1.67–1.82× as long as posteriorly broad, very finely and tightly strigosegranulate transversally, with setiferous punctures, more dense laterally ( Fig. 7F ); spiracle near its basal 0.36; lateromedian longitudinal carinae and lateral longitudinal carinae strong, reaching about 0.25 of length of tergite. Sternite I extending back 0.43–0.45 the length of tergite ( Fig. 7G ). Tergite II 1.0–1.1× as long as posteriorly broad, with moderately dense setiferous punctures, distance between punctures about once its diameter; remainder of tergites progressively more densely punctate ( Fig. 7F ). Ovipositor shiny, ventral valve coriaceous towards base, evenly upcurved at distal 0.3, 2.0–2.13× as long as hind tibia ( Fig. 7G ). Ovipositor sheath 1.81–1.98× as long as hind tibia, length of setae on average 1.25–1.33× the sheath basal width. Ventral margin of ovipositor sheath basally with numerous small denticles ( Fig. 7E ).

Colouration ( Figs 1E , 7 ). Head red with clypeus, face, eye orbits entirely, mouth parts except apex of mandibles, malar space and ventral part of gena behind mandible base, white cream; antenna with scape and pedicel brown dorsally, widely white cream at ventral side, flagellomeres brown, basal flagellomeres white cream on the ventral side ( Figs 7 A–D). Mesosoma mostly red ( Figs 7A, 7B ); propleuron ventrally, anterior dorsal part and posterior dorsal lateral band on pronotum, subalar prominence, tegula, mesepimeron, posterior part of metapleuron, two dorsal stripes on mesonotum, widely interrupted by notauli, apex of scutellum and postscutellum, and sometimes, lateral posterior spots on propodeum, white cream; dorsal part of propleuron, half ventral part of pronotum except ventral rim, epicnemium, dorsal part of mesopleuron except subalar prominence, axillae, lateral parts of metanotum, anterior part and posterior margin of propodeum, and ventral half of metapleuron, dark brown to black. Metasoma mostly dark brown ( Figs 7 F–G), tergites I–IV with a pair of subapical lateral whitish spots; posterior margin of tergites I–III black laterally. Ovipositor sheaths dark brown. Ovipositor dark red. Legs predominantly white cream; front and mid leg with dorsal narrow stripe on femur and distal part of tibia, and distal part of tarsi brown; hind leg with anterior and posterior wide mark on coxa, basal mark on trochanter, subapical band on femur, tibia except mid part, and distal part of tarsi, brown. Wings hyaline, pterostigma brown ( Fig. 1E ).

Male: Body length 5.6–7.6 mm. Fore wing length 4.0– 5.4 mm.

Head ( Figs 10 A–C). Gena ventrally granulate, in dorsal view slightly rounded, 0.27–0.35× as long as eye, in frontal view convex and strongly constricted below eyes ( Fig. 10A ). Posterior ocellus separated from eye 1.0–1.1× its maximum diameter. Distance between hind ocelli 0.73–0.83× maximum diameter of posterior ocellus. Occipital carina absent ventrally (Fig, 10C). Clypeal suture straight ( Fig. 10A ). Clypeus 1.57–1.88× as broad as medially long, almost flat. Malar space 0.8–1.0× as long as basal mandibular width, with a granulate weak sulcus between eye and mandible. Antenna with 22–24 flagellomeres, first flagellomere about 5.67× as long as wide.

Mesosoma ( Figs 10 D–E). Metapleuron smooth, 1.87–2.08× as long as high ( Fig. 10D ). Propodeum in dorsal view 1.32–1.39× as long as medially wide. Hind leg with femur 4.17–4.47× as long as high. Fore wing with vein 2 rs-m 0.30–0.38× 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 1.10–1.17× as long as Cu 1 b. Hind wing with vein cu-a 0.46–0.50× abscissa of Cu 1 between M and distal abscissa of Cu 1; vein cu-a strongly reclivous; first abscissa of Cu 1 vertical; distal abscissa of Cu 1 weakly pigmented.

Metasoma ( Figs 10 F–G). Tergite I 2.14–2.9× as long as posteriorly broad. Tergite II 2.3–3.5× as long as posteriorly broad, granulate, with dense setiferous punctures, distance between punctures about once its diameter; rest of tergites progressively more densely punctate and less granulate.

Colouration ( Figs 8B , 10 ). As female, but head black with posterior white cream eye orbit usually interrupted at dorsal part of gena ( Fig. 10C ), ventral part of gena behind mandible base, dark brown and a spot just behind posterior ocelli red. Mesosoma ( Figs 10 D–10E) with propleuron entirely, anterior margin and posterior corner of pronotum, tegula, subalar prominence, ventral part of mesopleuron and mesosternum, posterior part of metapleuron, lateral stripes on posterior part of propodeum, white cream; epicnemium reddish to dark brown; tergites I–VI with a pair of conspicuous subapical lateral whitish marks ( Fig. 10G ); posterior margin of tergites II–VI black ( Fig. 10F ). Front and mid legs, white; mid tarsi infuscate dorsally; hind leg with anterior and posterior wide mark on coxa, basal mark on trochanter, base and lateral anterior and posterior longitudinal stripes on femur, tibia except mid part, and distal part of tarsi widely, brown ( Fig. 8B ).

Other features as in female.

Etymology: The specific name “ speculata ” derives from the Latin word “ specula ” which means eyeglasses in reference to the entirely white cream eye orbits of female.

Type material. Holotype. Chile: 1 ♀, El Canelo, Santiago, Nov.–Dic. 1952 ( FSCA) . Paratypes. Chile: 1 ³, El Canelo , Santiago, 20–XI– 1964, 700m, C.C. Porter ( FSCA); 1 ♀, Cautin , Pucon (Península), 19–25–XI–1989, C. Porter ( FSCA); 1 ♀, Concepción , Con. , 12–15–X–1970, T. Cekalovic, ( AEIC); 5 ♀♀, 1 ³, Conchali , Santiago, XI–1979, Luis Peña ( AEIC); 1 ♀, Macul , Santiago, XII–1975, Luis Peña ( AEIC); 1 ♀, Maipú , Santiago Prov., XII–28–1966, Lionel Stange ( AEIC); 1 ♀, Melocotón, Santiago, 25–27–sept–1954, Col L. E. Peña ( FSCA) ; 1 ³, Pluquenes , 8–12–II–1964, Aconc. Luis Peña ( AEIC); 1 ♀, Santiago, Carlos E. Porter, without date ( NMNH); 3 ♀♀, Santiago, Rio Clarillo, Nat. Pk., 28–IX/ 15–X–1988, C. Porter & CH. González, Malaise Trap ( FSCA) ; 2 ³³, same locality and collector, 25–X/ 6–XI–1988, Malaise Trap ( FSCA); 1 ♀, 1 ³, same locality and collector, 6–XI / 2–XII– 1988, Malaise Trap ( FSCA) ; 2 ³³, same locality and collector, 2–XII–1988 / 3–I–1989, Malaise Trap ( FSCA); 2 ♀♀, 3 ³³, same locality and collector, 2–23–I–1989, Malaise Trap ( CEUA) .

Distribution: Chile.

Figures

FIGURE 1. Habitus of Clistopyga spp., females, lateral view: A—C. albovittata (holotype); B—C. diazi (holotype); C—C. lapacensis (holotype); D—C. lopezrichinii (holotype); E—C. speculata (holotype). Scale bar: 2 mm.

FIGURE 2. Metapleuron of Clistopyga spp., females:A—C. albovittata (holotype); B—C. diazi (holotype); C—C. lapacensis (holotype); D—C. lopezrichinii (holotype); E—C. speculata (holotype). Arrows show the submetapleural carina (absent in C. speculata). Scale bar: 0.2 mm (A, E); 0.3 mm (B–C); 0.1 mm (D).

FIGURE 7. Morphology of Clistopyga speculata, female: A–B, head and mesosoma (paratype); A—lateral view, B—dorsal view. C–D, head (paratype); C—frontal view, D—dorsal view. E—Basal part of ovipositor sheath showing ventral teeth (ar- rows) holotype. F–G, metasoma (paratype); F—dorsal view, G—lateral view. Scale bar: 0.5 mm (A); 0.2 mm (C, E); 0.3 mm (D); 1 mm (B, F–G).

FIGURE 8. Habitus of Clistopyga spp., males, lateral view, paratypes: A—C. albovittata, B—C. speculata. Scale bar: 1 mm.

FIGURE 10. Morphology of Clistopyga speculata, male, paratype: A–C, head (arrows show the convex ventral part of gena); A—frontal view, B—dorsal view, C—lateral view. D–E, head and mesosoma; D—lateral view, E—dorsal view. F–G, meta- soma; F—dorsal view, G—lateral view. Scale bar: 0.2 mm (A–C); 0.5 mm (D, E); 1 mm (F–G).