Gauldiana arantia Khalaim & Ward

Khalaim, Andrey I. & Ward, Darren F., 2018, Tersilochinae (Hymenoptera: Ichneumonidae) from New Zealand. Part 1. Generic key and three new genera, Zootaxa 4425 (1), pp. 41-77: 68-69

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Gauldiana arantia Khalaim & Ward

sp. nov.

Gauldiana arantia Khalaim & Ward  , sp. nov.

( Figs 29 View Figure , 88–93View FIGURES 88–92View FIGURES 93–97)

Comparison. The new species is similar to G. nigra  as both have predominantly orange mesosoma and ovipositor stronger upcurved at extreme apex ( Figs 29 View Figure , 34 View Figure ), but differs from this species by the extensively orange head ( Figs 88–90 View Figure ), flagellum slightly clavate and with fewer flagellomeres ( Fig. 88 View Figure ), and longer ovipositor.

Description. Female. Body length 3.3 mm. Fore wing length 2.55 mm.

Head with gena in dorsal view about 0.8× as long as eye width ( Fig. 90 View Figure ), centrally with very shallow granulation, almost smooth and weakly shining. Clypeus lenticular, finely granulate, finely and sparsely punctate in upper part. Flagellum slightly clavate, with 16–17 flagellomeres ( Fig. 88 View Figure ). Mandible not twisted, with upper tooth distinctly longer than lower tooth. Malar space 0.5–0.7× as long as basal mandibular width.

Mesosoma with notaulus and foveate groove absent. Propodeum with basal part as long as or slightly shorter than the apical area ( Fig. 91 View Figure ). Apical area narrow, about 1.4–1.5× as long as maximally broad.

Fore wing with vein R1 almost reaching tip of the wing. Vein 2m-cu interstitial. Hind wing with vein cu1&cu- a slightly reclivous.

First metasomal tergite about 3.0× as long as posteriorly broad. Second tergite slightly elongate, about 1.2× as long as anteriorly broad. Ovipositor apically somewhat stronger upcurved ( Fig. 92 View Figure ); sheath about twice as long as hind tibia.

Head orange, inter-ocellar area darkened. Mandible (teeth blackish), palpi, scape and pedicel of antenna and tegula yellow, clypeus yellowish orange, flagellum blackish. Mesosoma predominanly orange with variable ammount of reddish brown marks. Legs yellow, hind coxa basally or entirely brownish. Metasoma (including first tergite) orange-brown to dark brown.

Male. Head and mesosoma usually darker than in female ( Fig. 93 View Figure ), sometimes only lower face and lower genae orange, and upper orbits slightly paler. Mesosoma sometimes predominantly dark reddish brown with orange-brown marks on pronotum, upper mesopleuron, mesoscutum and scutellum. Flagellum with 16–19 flagellomeres, filiform.

Molecular data. One specimen with a partial CO1, and a 28S sequence ( NZACAbout NZAC 04034511).

Etymology. The species is named from the Latin arantius (orange) on account of its extensive orange colouration.

Material examined. Holotype. Female ( NZACAbout NZAC), New Zealand, ND, Poor Knights Islands, Tawhiti Rahi Island, SE track, regenerating bush, Malaise trap, 3–10.XII.1980, R.H. Kleinpaste, NZAC04037271View Materials. 

Paratypes. AK: 1 ♂ ( ZISPAbout ZISP) Whatipu, coastal forest, 19.XI.2009, D. Ward. BP: 1 ♂ ( AMNZAbout AMNZ) Rereauira,

Nothofagus forest on ridge, Malaise trap, I.1993, J.W.M. Marris & R.M. Emberson. CL: 1 ♂ ( NZACAbout NZAC) Cuvier Island , ferns and bracken, Pan trap, 25.II–2.III.1982, G. Hall  . 1 ♂ ( ZISPAbout ZISP) Coromandel, 9 km E of Tapu, 15.XI.1980, J.S. Noyes. CO: 1 ♀ ( NZACAbout NZAC) Earnscleught Stn, 360 m, Aldinga Conservation Area, Malaise trap, 3.II.1997, B.I.P. Barratt. GB: 1 ♀ ( NZACAbout NZAC) Kakanui , Malaise trap, XII.1992– 1.II.1993, J.S. Dugdale  . 3 ♂ (2 ♂ — NZACAbout NZAC, 1 ♂ — ZISPAbout ZISP) Kakanui, Malaise trap, 27.X–2.XII.1992, G. Hall. MC: 1 ♀ ( NZACAbout NZAC) Quail Island , Malaise trap, 8.XII.1999, M. Bowie. ND: 1 ♂ ( NZACAbout NZAC) Poor Knights Islands, Tawhiti Rahi Island, N track, near lighthouse, sweep, 8.XII.1980, M.F. Tocker  . 1 ♀ ( ZISPAbout ZISP) Unuwhao, 25.XI.1982, J.S. Noyes. NN: 3 ♀ and 2 ♂ ( NZACAbout NZAC) Whangamoa, on Neopanax arboreum  , 29.VI.1964, J.I. Townsend. OL: 1 ♀ ( NZACAbout NZAC) Glenorchy SF, Dart River, sweep, 21.I.1981, J.S. Noyes & E.W. Valentine. TO: 1 ♀ ( ZISPAbout ZISP) Kaimanawa F.P., Iwitahi, on Nothofagus, sweep, 24.III.1985, A.K. Walker. WN: 1 ♀ ( NZACAbout NZAC) Wellington, Maupuia Park , Malaise trap, 19–23.II.2003, F.- R. Schnitzler  . 1 ♂ ( NZACAbout NZAC) Wellington, Karori Sanctuary , Malaise trap, 4–8.II.2004, F.- R. Schnitzler. 

Distribution. North Island: ND, AK, CL, BP, TO, GB, WN. South Island: NN, MC, OL, CO.


New Zealand Arthropod Collection


Zoological Institute, Russian Academy of Sciences


Auckland Institute and Museum