Gauldiana triangulata Khalaim & Ward 2018, sp. nov.
Creators: name: Khalaim, Andrey I.
name: Ward, Darren F.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Gauldiana
Gauldiana triangulata

description: Gauldiana triangulata Khalaim & Ward, sp. nov.
(Figs 20, 37, 104–109)
Comparison. The new species is immediately distinguished from all others in this genus by its subtriangular clypeus with ventrolateral margins concave (Fig. 105), twisted mandibles, entirely orange antenna with subapical flagellomere transverse (Fig. 104), distinctly impressed notauli (Fig. 106) and large body.
Description. Female. Body length 4.9 mm. Fore wing length 3.8 mm.
Head strongly rounded behind eyes in dorsal view, with gena short, about 0.65× as long as eye width (Fig. 106). Clypeus subtriangular (lower margin laterally concave), smooth, with sparse punctures in upper part (Fig. 105). Mandible basally robust, apically twisted about 40–45°, with upper tooth much longer than lower tooth. Malar space 0.6–0.8× as long as basal mandibular width. Flagellum short, clavate, with 19–21 flagellomeres, basally slender and with subapical flagellomere transverse (Fig. 104). Face and frons densely granulate (Figs 105, 106). Vertex finely granulate, dull. Genae centrally smooth and shining.
Mesosoma with notaulus rather strongly impressed, with fine wrinkle along anterior margin of the depression (Fig. 106). Propodeum usually with very weak basal keel which is 0.6–0.8× as long as apical area (Fig. 107). Propodeal spiracle separated from pleural carina by 1.5–2.0× diameter of spiracle.
Fore wing (Fig. 20) with vein R1 almost reaching apex. Vein 2m-cu interstitial or slightly postfurcal. Hind wing with vein cu1&cu-a reclivous.
First metasomal tergite rather strongly depressed, transversely oval in cross-section (Fig. 108). Second tergite about as long as broad anteriorly. Ovipositor apically strongly upcurved; sheath 1.3–1.5× as long as hind tibia.
Head black; clypeus, palpi and lower end of gena orange. Antenna orange, slightly infuscate basally. Mesosoma reddish orange, with three mesoscutal marks and mesosternal region blackish. Pterostigma brown. Legs brownish yellow; hind coxa reddish brown; hind femur centrally, tibia and tarsus more or less darkened with brown. First metasomal tergite reddish orange to reddish brown. Metasoma behind first tergite brownish yellow.
Male. Flagellum with 21–22 flagellomeres, filiform. Otherwise similar to female.
Etymology. Named on account of its subtriangular clypeus.
Remarks. Large numbers of individuals of this species have been reared from the scolytid-infested wood of Pseudopanax simplex (Araliaceae). One female was reared from Hebe stricta (Plantaginaceae).
Material examined. Holotype. Female (NZAC), New Zealand, NN, Dun Mt. Tramway, 548 m, ex wood of Pseudopanax simplex, collected 24.VIII.1967, emerged 6.XI.1967, J.I. Townsend, NZAC 0 4036599.
Paratypes. NN: 52 ♀ and 44 ♂ (46 ♀ and 40 ♂—NZAC, 6 ♀ and 4 ♂—ZISP) data as holotype. 4 ♂ (NZAC) Pretty Bridge V, pasture, pit trap, 9.XI.1966, G. Hitchings. 1 ♀ (NZAC) Whangamoa Saddle, ex Hebe stricta, collected 14.III.1966, emerged 27.III.1966, J.I. Townsend.
Distribution. South Island: NN.
description: Published as part of Khalaim, Andrey I. & Ward, Darren F., 2018, Tersilochinae (Hymenoptera: Ichneumonidae) from New Zealand. Part 1. Generic key and three new genera, pp. 41-77 in Zootaxa 4425 (1) on pages 75-76, DOI: 10.11646/zootaxa.4425.1.3, http://zenodo.org/record/1456016