Clistopyga isayae, Palacio & Bordera & Sääksjärvi & Díaz, 2018

Palacio, Edgard, Bordera, Santiago, Sääksjärvi, Ilari E. & Díaz, Francisco, 2018, The Neotropical species of Clistopyga (Hymenoptera, Ichneumonidae, Pimplinae). Part II: the C. isayae species group, with the description of seven new species, Zootaxa 4442 (1), pp. 101-121 : 102

The Clistopyga isayae species-group

Diagnosis. Clypeus distinctly convex in dorsal half, flat in ventral half, with apical margin bilobed ( Figs 2A , 3A , 4B , 5B , 6B , 7B , 8B ). Gena in anterior view slightly rounded or almost straight and moderately constricted below eyes. Occipital carina completely absent, widely interrupted laterally ( Fig. 11D, E ), or present only ventrally as a short vestige. Occiput in dorsal view slightly concave. Malar space 0.6–1.1 × as long as basal mandibular width. Antenna with 24–27 flagellomeres, first flagellomere 5.9–7.3 × as long as wide. Epomia strong but short. Posterior part of median lobe of mesoscutum not prominent. Metapleuron 2.4–2.9 × as long as deep. Propodeum without lateromedian longitudinal carina, 1.2–1.5× as long as medially wide in dorsal view. Submetapleural carina completely absent. Hind leg with femur 3.9–4.6 × as long as deep and 0.8–1.1 × as long as tibia. Sternite I of metasoma extending back about 0.4–0.6 of length of tergite. Ovipositor slender to stout, 2.6–3.3 × as long as hind tibia: shaft weakly upcurved at apical 0.3–0.5, not denticulate in basal 0.35, with isolated, coarse transverse wrinkles; upper valve with apex blunt, not tapered, slightly to distinctly thickened ( Figs 1A, B , 4F , 5F , 6F , 7F , 8F ), and with fine longitudinal rugulae. Ovipositor sheath 1.9–2.5 × as long as hind tibia, with numerous denticles at basal ventral margin ( Figs 11F–G ). Female fore leg with tibia unspecialized, not swollen. Male gena without longitudinal concavity in ventral part ( Fig. 10A ) (the male is currently known only for one species).

Remarks. The C. isayae species group appears to be restricted to tropical South America and most of the species are found at mid and high altitudes in Andean forests, between 1200–3000m. Seven species are known from Colombia, Peru and Venezuela, but it is possible that there are several new species waiting to be discovered especially in the tropical Andean forests of northern South America.

Figures

FIGURE 1. Habitus of Clistopyga spp. ♀. A. C. isayae Díaz, Bordera & Palacio sp. nov., holotype B. C. crassicaudata Sääksjärvi, Bordera & Palacio sp. nov., holotype.

FIGURE 2. C. crassicaudata Sääksjärvi, Bordera & Palacio sp. nov., holotype, ♀. A. Head, frontal view. B. Head, dorsal view. C. Metasoma, dorsal view. D. Mesosoma, dorsal view. E. Fore wing, upper and lower arrows indicates abscissa of Cu1 (between 1m-cu and Cu1a) and vein Cu1b, respectively. F. Hind wing, upper and lower arrows indicates abscissa of Cu1 (between M and cu-a) and vein cu-a, respectively.

FIGURE 3. C. isayae Díaz, Bordera & Palacio sp. nov., holotype, ♀. A. Head, frontal view. B. Head and mesosoma, dorsal view. C. Metasoma, dorsal view. D. Fore wing, upper and lower arrows indicates abscissa of Cu1 (between 1m-cu and Cu1a) and vein Cu1b, respectively. E. Hind wing, upper and lower arrows indicates abscissa of Cu1 (between M and cu-a) and vein cu-a, respectively.

FIGURE 4. C. kalima Palacio sp. nov., holotype, ♀. A. Head, lateral view. B. Head, frontal view. C. Head, dorsal view. D. Mesosoma, lateral view. E. Metasoma, lateral view. F. Ovipositor. G. Fore wing, upper and lower arrows indicates abscissa of Cu1 (between 1m-cu and Cu1a) and vein Cu1b, respectively. H. Hind wing, upper and lower arrows indicates abscissa of Cu1 (between M and cu-a) and vein cu-a, respectively. I. Mesosoma, dorsal view. J. Metasoma, dorsal view.

FIGURE 5. C. nigriventris Palacio sp. nov., holotype, ♀. A. Head, lateral view. B. Head, frontal view. C. Head, dorsal view. D. Mesosoma, lateral view. E. Metasoma, lateral view. F. Ovipositor. G. Fore wing, upper and lower arrows indicates abscissa of Cu1 (between 1m-cu and Cu1a) and vein Cu1b, respectively. H. Hind wing, upper and lower arrows indicates abscissa of Cu1 (between M and cu-a) and vein cu-a, respectively. I. Mesosoma, dorsal view. J. Metasoma, dorsal view.

FIGURE 6. C. panchei Palacio sp. nov., holotype, ♀. A. Head, lateral view. B. Head, frontal view. C. Head, dorsal view. D. Mesosoma, lateral view. E. Metasoma, lateral view. F. Ovipositor. G. Fore wing, upper and lower arrows indicates abscissa of Cu1 (between 1m-cu and Cu1a) and vein Cu1b, respectively. H. Hind wing, upper and lower arrows indicates abscissa of Cu1 (between M and cu-a) and vein cu-a, respectively. I. Mesosoma, dorsal view. J. Metasoma, dorsal view.

FIGURE 7. C. splendida Palacio & Bordera sp. nov., holotype, ♀. A. Head, lateral view. B. Head, frontal view. C. Head, dorsal view. D. Mesosoma, lateral view. E. Metasoma, lateral view. F. Ovipositor. G. Fore wing, upper and lower arrows indicates abscissa of Cu1 (between 1m-cu and Cu1a) and vein Cu1b, respectively. H. Hind wing, upper and lower arrows indicates abscissa of Cu1 (between M and cu-a) and vein cu-a, respectively. I. Mesosoma, dorsal view. J. Metasoma, dorsal view.

FIGURE 8. C. taironae Palacio, Bordera & Díaz sp. nov., holotype, ♀. A. Head, lateral view. B. Head, frontal view. C. Head, dorsal view. D. Mesosoma, lateral view. E. Metasoma, lateral view. F. Ovipositor. G. Fore wing, upper and lower arrows indicates abscissa of Cu1 (between 1m-cu and Cu1a) and vein Cu1b, respectively. H. Hind wing, upper and lower arrows indicates abscissa of Cu1 (between M and cu-a) and vein cu-a, respectively. I. Mesosoma, dorsal view. J. Metasoma, dorsal view.

FIGURE 10. C. taironae Palacio, Bordera & Díaz sp. nov., paratype, ♂. A. Head. B. Mesosoma, lateral view. C. Metasoma, lateral view.

FIGURE 11. Clistopyga spp. ♀. A–C. Subalar prominence. A. C. splendida Palacio sp. nov., paratype. B. C. kalima Palacio sp. nov., holotype. C. C. panchei Palacio sp. nov., holotype. D–E. Head, posterior view, upper and lower arrows indicates the dorsal and ventral parts of occipital carina, respectively. D. C. splendida Palacio sp. nov., paratype. E. C. taironae Palacio, Bordera & Díaz sp. nov., holotype. F–G. Ovipositor sheath, the arrows shows the denticles at basal ventral margin. F. C. splendida Palacio sp. nov., holotype. G. C. taironae Palacio, Bordera & Díaz sp. nov., holotype.