Atractodes colchaguensis Bordera, Mazón & Sääksjärvi, 2016, sp. nov.
Creators: name: Bordera, Santiago
name: Mazón, Marina
name: Sääksjärvi, Ilari E.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Atractodes
Atractodes colchaguensis

description: Atractodes colchaguensis sp. nov.
(Figs 1 A, 2C, 3A, 4A, 4D)
Diagnosis. Atractodes colchaguensis can be distinguished from all other species of the A. pleuripunctatus speciesgroup by the combination of the following characters: median area of propodeum transversally strigose (Fig. 2 C); postpetiole short, square (Fig. 2 C); hind femur 6.3 × longer than deep; sensillae of flagellum not apparent (Fig. 4 A).
Description. Female: Body length 5.7 mm. Fore wing length 4.3 mm.
Head (Figs 3 A, 4A). Transverse, about 0.6–0.7 × as wide as long, not narrowed behind compound eyes, rounded (viewed from above); gena about 0.5 × as long as eye, smooth and shiny with sparse setiferous punctures, setae relatively short. Frons and vertex granulate with dense shallow setiferous punctures, setae relatively short. Occipital carina rounded in middle part. Posterior ocellus separated from eye by 1.4 × its own maximum diameter; distance between posterior ocelli 0.8 × its own maximum diameter. Face finely and very densely punctate on a granulate background. Clypeus weakly convex, 2.2 × as wide as long, densely punctate on a smooth and shiny background, apex slightly upturned medially, setae conspicuously longer than in face. Lower tooth of mandible 0.6–0.7 × the length of upper tooth. Eye with relatively long and more or less dense setae. Malar space about 1.2– 1.3 × basal mandibular width, conspicuously granulate behind the mandible base, vanishing towards compound eye. Antenna with 17 flagellomeres; first flagellomere, seventh and penultimate 5.1, 2.3 and 1.6 × as long as wide, respectively; antenna slightly widened towards apex, width of penultimate about 1.4 × the width of first flagellomere (Fig. 3 A); sensillae of flagellum not apparent (Fig. 4 A).
Mesosoma (Figs 2 C, 4D). Pronotum finely and densely punctate, denser in the anterior lateral part; epomia shallow and short, only reaching the anterior submarginal depression. Mesoscutum fine and densely punctate on a smooth and shiny background; notauli distinct and short, reaching about 0.4 × the length of mesoscutum; prescutellar groove deep, smooth, without longitudinal striae; scutellum with dense fine and shallow setiferous punctures, not delimited by a lateral carina. Mesopleuron shiny, with fine and dense setiferous punctures; sternaulus deep, almost reaching the hind rim of mesopleuron. Metapleuron strongly punctate and granulate; juxtacoxal carina absent. Propodeum mostly strongly punctate and rugose, setae long and dense; area basalis not well defined; median area clearly defined, transversally strigose, with parallel sides, about 2.3 × as long as its maximum width (Fig. 2 C); spiracle small, rounded, separated from pleural carina 3.3 × its diameter. Legs long and slender; length of hind femur about 6.3 × its width. Hind tarsal claws thin and very long, forming an obtuse angle, clearly longer than arolium (Fig. 4 D).
Wings. Very densely setose. Fore wing with pterostigma long, about 3.3 × wider than high, vein Rs +2 r about 2.0 × longer than its height; areolet pentagonal, open, about 0.8 × higher than wide; 2 m-cu with one bullae; first abscissa of Cu 1a 1.2 × Cu 1b. Hind wing with cu-a slightly angulated, intercepted at its lower 0.3, straight; distal abscissa of Cu 1 only pigmented at base.
Metasoma (Figs 1 A, 2C). Tergite I with sparse setiferous punctures on a finely granulate background, 2.8 × longer than posteriorly broad, in lateral view, dorsal part strongly curved (Fig. 1 A), cross section of petiole on the mid part more or less rectangular, upper side flat; postpetiole short, quadrate (Fig. 2 C); tergite II polished, about 1.6 × longer than basally broad; lateral crease separating tergite II from epipleuron present at basal third; other tergites smooth and shiny, with sparse setae.
Colouration (Fig. 1 A). Black; flagellum dark brown, lighter towards the apex. Legs dark brown. Metasoma from tergite II to the apex, reddish; tergite I black.
Male: unknown.
Etymology. The name of the species refers to Colchagua Valley in Chile, where the holotype was collected. Type material. Holotype 1 ♀: Chile, Rio Tinguiririca, Valle Colchagua, 1550 m, 2.II.1978, leg. Luis Peña (AEIC).
description: Published as part of Bordera, Santiago, Mazón, Marina & Sääksjärvi, Ilari E., 2016, The Neotropical species of Atractodes (Hymenoptera, Ichneumonidae, Cryptinae), II: the A. pleuripunctatus species-group, pp. 437-444 in Zootaxa 4161 (3) on pages 438-441, DOI: 10.11646/zootaxa.4161.3.11, http://zenodo.org/record/264475