Kiwi waitakerus Khalaim & Ward, 2019

Khalaim, Andrey I. & Ward, Darren F., 2019, Tersilochinae (Hymenoptera: Ichneumonidae) from New Zealand. Part 2. Review of genera Kiwi gen. nov. and Zealochus Khalaim, Zootaxa 4613 (3), pp. 521-545 : 536-538

Kiwi waitakerus Khalaim & Ward , sp. nov.

( Figs 4 , 14 , 44, 45 , 64)

Comparison. The new species may easily be distinguished from other species of Kiwi by completely lacking vein 2m-cu in the fore wing ( Fig. 4 ). It is similar to K. oreteus and K. ruzelus but differs from these two species by granulate gena ( Fig. 44 ), less slender antennal flagellum and longer ovipositor. It also differs from K. ruzelus by shorter gena, weaker foveate groove of mesopleuron ( Fig. 44 ), longer tergites 1 and 2, and by shape of the ovipositor ( Fig. 45 ).

Description. Female. Body length 2.1 mm. Fore wing length 1.9 mm.

Head in dorsal view strongly rounded and tapered behind eyes, with gena 0.55–0.6× as long as eye width. Head impunctate, granulate, dull; clypeus almost entirely smooth, slightly scabrous near upper margin, usually with a few fine punctures in lower part; gena sometimes very shallowly granulate, weakly shining. Vertex mediodorsally impressed. Clypeus lenticular, weakly convex, with lower margin somewhat truncated. Flagellum filiform or slightly tapered towards apex, moderately slender, usually with 15–16 flagellomeres (15 in holotype), in small specimens sometimes with 13–14 flagellomeres; flagellomeres 2–4 about 1.6–2.0× and subapical flagellomeres 1.2–1.4× as long as broad. Mandible slender, with upper tooth somewhat longer than the lower. Malar space 0.6–0.8× as long as basal mandibular width.

Mesosoma granulate, impunctate, dull; mesopleuron in upper posterior part very shallowly granulate, sometimes almost smooth. Notaulus with a strong longitudinal wrinkle on anterolateral side of mesoscutum. Foveate groove short and thin, oblique, situated in front half of mesopleuron, not reaching epicnemial carina anteriorly, with fine transverse wrinkles ( Fig. 44 ). Propodeal spiracle separated from pleural carina by 1.5–2.0× diameter of spiracle. Propodeum mediodorsally granulate or with one or two longitudinal wrinkles; basal part 0.6–0.8× (rarely almost 1.0×) as long as apical area; transverse carina well developed; apical area widely rounded anteriorly; apical longitudinal carinae complete. Fore wing with vein 2m-cu completely absent ( Fig. 4 ), in larger specimens the extreme hind end sometimes discernible as a vestige.

First tergite very slender, about 4.6× as long as posteriorly broad, in lateral view straight or weakly arcuate in basal 0.7, strongly arcuate in apical 0.3, usually with a slight concavity in apical 0.6–0.7 ( Fig. 42 ); petiole longitudinally striate; postpetiole granulate, often with slight striae over granulation. Glymma small, situated in mid of tergite or slightly behind middle, joining by furrow to ventral part of postpetiole. Second tergite 1.3–1.5× as long as anteriorly broad. Thyridial depression well delimited, about 1.5× as long as broad. Ovipositor with moderately deep dorsal subapical depression ( Fig. 45 ); sheath 1.2–1.8× as long as hind tibia (1.8× in holotype).

Head, mesosoma and metasoma brown to dark brown; mouthparts, mandible (teeth red), scape and pedicel of antenna yellow; lower 2/3 of clypeus pale brown. Tegula yellow or brownish. Pterostigma brown. Legs yellow to yellowish brown; hind leg with coxa darkened with brown, tarsus infuscate, and sometimes femur and tibia also brownish.

Male. Similar to female.

Variation. The species is morphologically rather variable (e.g. ovipositor sheath varied from 1.2 to 1.8× length of hind tibia, more than in any other New Zealand tersilochine species), but this taxon is clearly distinguished from its congeners by completely lacking vein 2m-cu (Fig. 4).

Etymology. The species is named after the type locality, the Waitakere Ranges, west of Auckland.

Material examined. Holotype. Female (NZAC), New Zealand, AK, Waitakere Ra., I.1981, coll. J.S. Noyes, NZAC04033951 Paratypes. AK: 1 ♂ ( NZAC) Waitakere Ra., Piha , 26.XII.1980, coll. J.S. Noyes. Birkenhead, coll. J.F. Longworth, Malaise trap, second growth bush: 4 ♂ (3 ♂ in NZAC, 1 ♂ in ZISP) X.1980, 1 ♂ ( NZAC) XI.1980, 1 ♂ ( NZAC) XII.1980. Huia, coll. B.M. May: 1 ♀ ( NZAC) XI.1980, 1 ♀ ( NZAC) I.1981, 2 ♀ ( NZAC) IV.1981. 1 ♀ ( NZAC) Titirangi , X.1980, coll. G.W. Ramsay. Waitakere Ra, coll. J.S. Noyes: 1 ♀ and 3 ♂ ( NZAC) XI.1980, 4 ♀ and 6 ♂ ( NZAC) I.1981. 1 ♂ ( NZAC) Waitakere Ra., Piha , 21.III.2000, Wasp survey, Malaise trap. 1 ♂ ( NZAC) Bethells , Matuku Reserve, 26.XI–2.XII.1988, Malaise trap on tree platform. BP: 1 ♀ ( NZAC) Waenga Bush , Malaise trap, XII.1992– 27.I.1993, coll. R.C. Henderson. 1 ♀ ( NZAC) Rereauira swamp, Malaise trap, 26.I–9.III.1993, coll. J.S. Dugdale. 1 ♀ ( AMNZ) Waenga , 100 m, lowland Podocarp /broadleaf forest, screen sweep, 27.I.1993, coll. J.W. Early. 3 ♂ ( AMNZ) Te Koau , 140–240 m, Puriri /nikau/ta waroa forest, screen sweep, 15.III.1993, coll. R.F. Gilbert. BR: 1 ♂ ( NZAC) Lake Rotoiti , XII.1980, coll. A.K. Walker. 4 ♂ ( NZAC) Lake Rotoiti , 600 m, I.1981, coll. F. Dodge. 1 ♂ ( NZAC) Lake Rotoiti , XII.1983, coll. Eastop. 1 ♂ ( NZAC) Saint Arnaud , Nothofagus solandri , 27.XII.1983. 35 ♀ and 1 ♂ (34 ♀ in NZAC, 1 ♀ and 1 ♂ in ZISP) Lake Rotoroa , Mt Misery, 41°.93S, 172°.66E, 450 m, Malaise trap, XI.2005. CL: 1 ♀ ( NZAC) Little Barrier I, 183 m, sweeping, 21.II.1976, coll. A.K. Walker. 1 ♂ ( NZAC) Great Barrier I, Kaiarara Valley, 23–28.III.1978, ESNZ Field trip, swept over bog bushes, coll. D.J. Allan. 2 ♂ ( NZAC) Kaueranga V., 1.II and 14.XI.1980, coll. J.S. Noyes. 3 ♂ ( NZAC) 19 km E of Tapu , I.1981, coll. J.S. Noyes. 1 ♀ ( NZAC) Waikawau Bay , 22.XI.1993, litter 93/130, coll. M.- C. Lariviere & A. Larochelle. 1 ♂ ( NZAC) Great Barrier Island , Little Windy Hill, 220 m, forest edge, Malaise trap, 7.XI–11.XII.2001, coll. P. Sutton & R.F. Gilbert. 1 ♀ ( AMNZ) Great Barrier Island , Little Windy Hill, 220 m, forest edge, Malaise trap, 13.XII.2002 – 17.I.2003, coll. P. Sutton. 1 ♀ ( AMNZ) same data, but 180 m, 17.I–27.II.2003, coll. K. Parsons. DN: 2 ♂ ( NZAC) Warrington , beach, 11.XII.1977, coll. E. Schlinger. GB: 2 ♀ and 1 ♂ ( AMNZ) Te Koau , track to Novells Watching Dog, 240–300 m, Puriri /nikau/ta waroa forest, screen sweep, 31.I.1993, coll. J.W. Early. MC: 1 ♂ ( USNM) 26 mi W of Springfield , swept from Nothofagus sp., 6.II.1970, coll. G.F. Hevel. 1 ♀ and 1 ♂ ( NZAC) W of Staveley , highway, Nothofagus forest, 72, XII.1977, coll. E. Schlinger. Banks Peninsula, Prices Valley, coll. R.P. Macfarlane: 1 ♀ ( NZAC) X.1980, 9 ♀ and 5 ♂ (6 ♀ and 5 ♂ in NZAC, 3 ♀ in ZISP) XI.1980, 6 ♀ ( NZAC) XII.1980, 12 ♀ ( NZAC) I.1981, 3 ♀ ( NZAC) II.1981, 3 ♀ ( NZAC) III.1981, 1 ♀ ( NZAC) IV.1981. 2 ♀ ( NZAC) Lincoln University, Orchard IFP block, Malaise trap, II.1996, coll. A.R. Gibb. ND: 1 ♂ ( NZAC) Waipoua SF, 3.X.1980, coll. J.S. Noyes. 1 ♀ ( NZAC) Omahutu SF, Kauri Sanctuary, 6.X.1980, coll. J.S. Noyes. 1 ♀ and 2 ♂ ( NZAC) Poor Knights Islands , Tawhiti Rahi Island, XII.1980, coll. C.F. Butcher. 1 ♂ ( NZAC) same data, but coll. R.H. Kleinpaste. 3 ♂ ( AMNZ) Waipoua Forest , Yakes Track, 300–360 m, Agathis forest, screen sweep, 24.III.1993, coll. J.W. Early. 3 ♀ ( AMNZ) Puketi F, Manginangina Scenic Reserve, 320 m, Kauri forest, swept, 16.XII.1993, coll. J.W. Early. 1 ♀ and 1 ♂ ( AMNZ) Waipoua Forest , Toatoa Track, 280 m, Agathis forest, screen sweep, 31.X.2000, coll. J.W. Early & R.F. Gilbert. 1 ♀ and 2 ♂ ( AMNZ) Trounson Kauri Park , 240 m, Kauri forest remnant, swept, 1.XII.2000, coll. J.W. Early & R.F. Gilbert. NN: 1 ♂ ( NZAC) Pokororo , 25.I.1922. 1 ♀ ( NZAC) The Glen , Nelson, 16.III.1951, coll. A.W. Parrott. 12 ♂ ( NZAC) Nelson , 20.X.1971, coll. E.W. Valentine. 1 ♀ and 2 ♂ ( NZAC) Cobb Reservoir , Malaise trap on edge Nothofagus forest, I.1981, coll. A.R. Curtis. 2 ♂ ( NZAC) same data, but II.1981. 1 ♂ ( AMNZ) Mt Arthur , Flora Saddle, 975 m, Nothofagus forest, swept, 9. VI.2003, coll. J.W. Early. OL: 2 ♀ ( NZAC) Makarora , I.1981, coll. J.S. Noyes & E.W. Valentine. 1 ♀ and 2 ♂ ( NZAC) Mt Aspiring NP, Makarora, I.1981, coll. J.S. Noyes & E.W. Valentine. SD: 1 ♀ ( NZAC) D’Urville I, Kapowai, IV.1971, litter 71/101, coll. F. Alack. 1 ♀ and 1 ♂ ( AMNZ) Mahau/ Kenepuru Sound , Putanui Point, 5–100 m, Nothofagus forest, swept, 13.I.1994, coll. J.W. Early. SI: 1 ♀ ( NZAC) Stewart Island , Butterfield Bay, II.1968, coll. E.W. Valentine. WN: 3 ♂ ( NZAC) Rimutaka Ra. , 250 m, mixed podocarp/ Nothofagus , 27.II.1981, coll. J.S. Noyes. 1 ♂ ( NZAC) Eastbourne , mixed podocarp/ Nothofagus , 28.II.1981, coll. J.S. Noyes. 1 ♀ ( NZAC) Petone , Franics Bell reserve, 100 m, mixed podocarp/ Nothofagus , 28.II.1981, coll. J.S. Noyes. 1 ♀ ( NZAC) Wellington , Otari / Wilton Bush, Malaise trap, 5.XII.2002, coll. Schnitzer. Wellington, Trelissick Park , Malaise trap, coll. Schnitzer: 1 ♀ ( NZAC) 10–14.XII.2002, 1 ♀ ( NZAC) 19–23.XII.2003, 1 ♀ ( NZAC) 18–22.II.2004. 1 ♂ ( NZAC) Wellington , near Karori Sanctuary, Malaise trap, 18–22.XII.2002, coll. Schnitzer. 1 ♀ ( ZISP) Upper Hutt , Bartons Bush, Malaise trap, 19–23.XII.2002, coll. Schnitzer. 1 ♀ and 1 ♂ ( NZAC) Wellington , Maupuia Park, Malaise trap, 19–23.II.2003, coll. Schnitzer. 1 ♂ ( NZAC) Lower Hutt , Belmont Regional Park, Malaise trap, 18–22.II.2003, coll. Schnitzer. 1 ♀ and 1 ♂ ( ZISP) same data, but 9–13.II.2004.

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Distribution. North Island (ND, AK, CL, GB, WN), South Island (BR, NN, SD, MC, DN, OL), Stewart Island (SI).

Figures

FIGURES 1–6. Wings of Tersilochinae, females, paratypes (1, 3–6) and non-type (2): 1—Kiwi barrattae sp. nov.; 2—K. gauldi; 3—K. ruzelus sp. nov.; 4—K. waitakerus sp. nov.; 5—Zealochus abdominosus sp. nov.; 6—Z. stepheni sp. nov. All scale bars 1.0 mm.

FIGURES 11–14. Kiwi spp., holotypes, females, lateral: 11—K. gauldi; 12—K. oreteus sp. nov.; 13—K. ruzelus sp. nov.; 14—K. waitakerus sp. nov.

FIGURES 43–45. Kiwi ruzelus sp. nov., paratype, female: 43—mesosoma, lateral. Kiwi waitakerus sp. nov., paratype, female: 44—head and front part of mesosoma, lateral; 45—ovipositor, lateral.

FIGURES 38–42. Kiwi ruzelus sp. nov., paratype, female: 38—head with antennae, lateral; 39—head and mesoscutum, dorsal; 40—head, front; 41—propodeum and base of metasoma, dorsal; 42—metasoma with ovipositor, lateral.