Barycnellus globosus 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: 61-63

publication ID

https://doi.org/10.11646/zootaxa.4425.1.3

publication LSID

lsid:zoobank.org:pub:BBAFBFC5-9A0B-4519-AB75-DF1EBB702D7C

persistent identifier

http://treatment.plazi.org/id/03AD87D5-5278-364A-BBF7-CC84FBFBF538

treatment provided by

Plazi

scientific name

Barycnellus globosus Khalaim & Ward
status

sp. nov.

Barycnellus globosus Khalaim & Ward  , sp. nov.

( Figs 15 View Figure , 26 View Figure , 69–76View FIGURES 65–71View FIGURES 72–79)

Comparison. Barycnellus globosus  is very similar to B. aucklandellus  but differs in having a smooth and shining frons ( Fig. 70 View Figure ); and head, in profile, with eyes distinctly displaced below ( Fig. 71 View Figure ). It is also generally smaller than B. aucklandellus  .

Description. Female. Body length 2.5 mm. Fore wing length 3.1 mm.

Face granulate, dull; frons, vertex and gena more or less smooth and shining ( Fig. 70 View Figure ). Head globose, in lateral view about 1.5× as high (from lower margin of clypeus to top of head) as broad, with antennae inserted slightly below level of centre of head ( Fig. 71 View Figure ). Clypeus lenticular, not especially broad. Malar space about half as long as basal mandibular width. Flagellum moderately slender, filiform or very weakly narrowed towards apex, with 17– 18 flagellomeres (17 in holotype) ( Fig. 69 View Figure ).

Mesosoma mostly granulate, mesopleuron and lateral lobes of mesoscutum sometimes almost smooth ( Fig. 72 View Figure ). Mesosoma weakly compressed laterally, with mesoscutum, in dorsal view, 0.6× as broad as head ( Fig. 70 View Figure ). Notaulus present, weakly reaching 0.3 along mesoscutum. Foveate groove weak and shallow, situated in centre of mesopleuron ( Fig. 72 View Figure ). Propodeum with only weak transverse carina which is often indistinct laterally, mediodorsally with shallow groove which is subequal to or slightly longer than apical area ( Fig. 73 View Figure ). Apical area broad (when discernible).

Fore wing ( Fig. 15 View Figure ) with vein R1 not reaching apex of the wing. Veins Rs and Rs+2 r meeting  at obtuse angle. Vein 2m-cu antefurcal, sometimes almost interstitial. Vein Cu1b intercepted near its centre. Legs robust, hind femur about 3.8× as long as broad ( Fig. 74 View Figure ).

Metasoma more or less cylindrical. First tergite granulate, petiole laterally striate, postpetiole posteriorly smooth ( Figs 72, 73 View Figure ). Glymma present, sometimes indistinct. Second tergite 1.8× as long as anteriorly broad. Thyridial depression about 2.5× as long as broad. Ovipositor weakly and evenly upcurved, with sharp dorsal subapical notch ( Fig. 75 View Figure ); sheath about 1.5× as long as hind tibia.

Head, mesosoma and first tergite dark brown to black. Clypeus mostly yellow, narrowly blackish in its upper part. Palpi, mandible (teeth darkened) and tegula pale. Pterostigma brown. Fore and mid legs yellowish; hind leg yellowish brown with trochanters yellow and coxa dark brown to black. Metasoma behind first tergite predominantly dark brown, tergites 2–6 usually yellowish dorsoposteriorly.

Male. Similar to females in structure and coloration, but often are slightly smaller. Differ from males of B. aucklandellus  by the less slender flagellum, eyes conspicuously displaced below, and smooth and shining frons.

Molecular data. BOLD BIN: AAW9309.

Etymology. On account of its globose head shape.

Remarks. In the NZACAbout NZAC there are 74 females and 1 male, all similarly labelled which have apparently been reared from the larva of an elaterid which is preserved along with the ichneumonids.

Material examined. Holotype. Female ( NZACAbout NZAC), New Zealand, AK, Walker Bush Track, 5.XI.1976, A.K. Walker, sweeping, NZAC04036286View Materials. 

Paratypes. AK: 1 ♀ ( NZACAbout NZAC) Huia, Malaise trap, in bush, II.1981, B.M. May. 1 ♀ ( NZACAbout NZAC) Huia, Malaise trap, in bush, III.1981, B.M. May. 1 ♀ ( NZACAbout NZAC) Huia, Malaise trap, in bush, IV.1981, B.M. May. 1 ♀ ( NZACAbout NZAC) Lynfield,

Malaise trap, 9.XI.1980, G. Kuschel. 1 ♂ ( NZACAbout NZAC) Lynfield , Malaise trap, 4.XII.1974, G. Kuschel  . 2 ♀ and 1 ♂ ( NZACAbout NZAC) Kawau I., Malaise trap, 27.III–13.V.1992, D. Williams  . 1 ♀ ( NZACAbout NZAC) Walker Bush Track , 5.XI.1976, A.K. Walker. Birkenhead, Malaise trap, in second growth bush, J.F. Longworth  : 3 ♀ and 9 ♂ (2 ♀ and 7 ♂—NZAC, 1 ♀ and 2 ♂—ZISP) X.1980, 4 ♀ and 9 ♂ (3 ♀ and 8 ♂—NZAC, 1 ♀ and 1 ♂—ZISP) XI.1980, 4 ♀ and 5 ♂ (NZAC) XII.1980, 3 ♀ and 7 ♂ (1 ♀ and 6 ♂—NZAC, 2 ♀ and 1 ♂—ZISP) I.1 981, 3 ♀ and 1 ♂ (NZAC) II.1981, 1 ♀ and 4 ♂ (NZAC) III.1981. 1 ♂ ( NZACAbout NZAC) Birkenhead , sweeping, 13. XII.1 982, A.K. Walker  . 1 ♂ ( NZACAbout NZAC) Titirangi , Malaise trap, in garden  , X.1980, G.W. Ramsay. 1 ♀ and 1 ♂ (NZAC) Titirangi, Malaise trap, in garden, XI.1980, G.W. Ramsay. 2 ♀ (NZAC) Titirangi, Malaise trap, in garden, XII.1980, P.A. Maddison. 1 ♂ (NZAC) Waitakere Ra, XI.1980, J.S. Noyes. 1 ♀ and 11 ♂ (NZAC) Waitakere Ra, I.1981, J.S. Noyes. 1 ♀ and 2 ♂ (NZAC) Waitakere Ra, 26.X.1980, J.S. Noyes. BP: 1 ♀ (NZAC) Te Koau, 243 m, Malaise trap, 31.I–15.III.1993, J.S. Dugdale. 2 ♀ ( NZACAbout NZAC) Rereauira Swamp , Malaise trap, 16.IX–20.X.1992, J.S. Dugdale  . 2 ♀ (NZAC) Rotorua, Forest Research Institute, Malaise trap, II.1981, J. Bain. BR: 1 ♀ ( ZISPAbout ZISP) Lake Rotoiti , 600 m  , Malaise trap, edge of Nothofagus forest, XII.1980, F. Dodge. 1 ♀ ( NZACAbout NZAC) Lake Rotoiti , 600 m  , Malaise trap, edge of Nothofagus forest, I.1981, F. Dodge. 1 ♀ ( NZACAbout NZAC) Lake Rotoiti , 600 m  , Malaise trap, edge of Nothofagus forest, IV.1981, F. Dodge. CL: 2 ♀ ( AMNZAbout AMNZ) Cuvier I., West Ridge Track , 160 m  , in forest, Yellow pan trap, 11–18.XI.1999, J.W. Early & S.E. Thorpe. 2 ♀ and 2 ♂ (AMNZ) Cuvier I., Main Ridge Track, 100 m, forest margin, Malaise trap, 10–18.XI.1999, J.W. Early & S.E. Thorpe. 1 ♀ (AMNZ) Cuvier I., Ridge Track, 120 m, forest edge, Malaise trap, 29.III–6.IV.2000, J.W. Early & R.F. Gilbert. 4 ♀ ( AMNZAbout AMNZ) Great Barrier Island , Little Windy Hill, 220 m  , forest edge, Malaise trap, 11.XII.2001 – 18.I.2002, P. Sutton. 1 ♀ ( AMNZAbout AMNZ) Great Barrier Island , Little Windy Hill, 220 m  , forest edge, Malaise trap, 21.II–26.III.2002, P. Sutton. 1 ♀ ( AMNZAbout AMNZ) Great Barrier Island , Little Windy Hill, 220 m  , forest edge, Malaise trap, 13.XII.2002 – 17.I.2003, P. Sutton. 1 ♀ ( AMNZAbout AMNZ) Great Barrier Island , Little Windy Hill, 220 m  , forest edge, Malaise trap, 26.III–16.IV.2002, P. Sutton. 1 ♀ ( AMNZAbout AMNZ) Great Barrier Island , Little Windy Hill, 220 m  , forest edge, Malaise trap, 21.XI–13.XII.2002, P. Sutton. 6 ♀ and 1 ♂ (4 ♀ — AMNZAbout AMNZ, 2 ♀ and 1 ♂ — ZISPAbout ZISP) Great Barrier Island , Little Windy Hill, 220 m  , forest edge, Malaise trap, 7.XI–11.XII.2001, P. Sutton & R.F. Gilbert. 1 ♀ ( NZACAbout NZAC) Kauaeranga Valley   , Thames, Malaise trap, 29.XI.1970, H.A. Oliver. GB: 1 ♂ (AMNZ) Te Koau, track to Hovells Watching Dog, Puriri/nikau forest, Screen sweep, 140–240 m, 31.I.1993, J.W. Early. HB: 1 ♀ (NZAC) Puketitiri, Little Bush, 15.III.1986, T.H. & I.M. Davies. 1 ♀ (NZAC) Puketitiri, Little Bush, Malaise trap, cyanide, 27.XII.1986, T.H. Davies. 1 ♀ (NZAC) Puketitiri, Little Bush, Malaise trap, cyanide, 20.XII.1988, T.H. Davies. MC: 1 ♂ ( NZACAbout NZAC) Banks Peninsula, Prices Valley   , edge of native bush, Malaise trap, X.1980, R.P. Macfarlane. ND: 1 ♂ ( AMNZAbout AMNZ) South of Te Haumi   , Paihia, 3.I.1986, K.A.J. Wise. 13 ♀ and 2 ♂ ( NZACAbout NZAC) Waipoua SF, Waipoua R, Ricker Track by bridge, w67/94, reared em: 25.IX.1968, 17.X.1967, J.S. Dugdale. NN: 1 ♂ ( NZACAbout NZAC) Aniseed V.  , 6.I.1934, E.S. Gourlay. 74 ♀ and 1 ♂ ( NZACAbout NZAC) Nelson, ex elaterid larva  , 4.XI.1929, E.S. Gourlay. 1 ♀ and 1 ♂ ( NZACAbout NZAC) Upper Maitai , Nelson  , III.1953, B.B. Given. OL: 2 ♀ (NZAC) Mt Aspiring NP, Makarora, sweeping Nothofagus/Podocarpus, 25.I.1981, J.S. Noyes & E.W. Valentine. TO: 1 ♀ (NZAC) Kaimanawa North Forest Park, 762 m, 20.II.1979, J.S. Dugdale. WN: 3 ♀ (1 ♀ — NZACAbout NZAC, 2 ♀ — ZISPAbout ZISP) Wellington, Otari / Wilton Bush, Malaise trap  , 6–12.XII.2002, F.R. Schnitzler. 2 ♀ ( NZACAbout NZAC, ZISPAbout ZISP) Lower Hutt   , Belmont Reg. Park, Malaise trap, 3– 7.XII.2003, F.R. Schnitzler. 8 ♀ (1 ♀ — NZACAbout NZAC, 7 ♀ — ZISPAbout ZISP) Lower Hutt   , Harbour View Res, Malaise trap, 7– 11.II.2003, F.R. Schnitzler. 1 ♀ ( NZACAbout NZAC) Wellington, Otari / Wilton Bush , Malaise trap, 16–20.IV.2004, F.R. Schnitzler  . 1 ♀ ( NZACAbout NZAC) Lower Hutt   , Harbour View Res, Malaise trap, 3–8.XII.2002, F.R. Schnitzler. 5 ♀ ( NZACAbout NZAC) Lower Hutt   , Harbour View Res, Malaise trap, 3–7.II.2004, F.R. Schnitzler. 1 ♀ ( NZACAbout NZAC) Upper Hutt   , Bartons Bush, Malaise trap, 19–23.XII.2002, F.R. Schnitzler. 2 ♀ ( NZACAbout NZAC) Lower Hutt   , Belmont Reg. Park, Malaise trap, 3– 7.XII.2003, F.R. Schnitzler. 1 ♀ (NZAC) Otari C, 2–3.I.2003, F.R. Schnitzler. 1 ♀ ( NZACAbout NZAC) Stokes Valley   , 17– 23.XII.2002, F.R. Schnitzler. 1 ♀ ( NZACAbout NZAC) Wellington, Otari / Wilton Bush, Malaise trap  , 2–6.I.2003, F.R. Schnitzler. 1 ♀ ( NZACAbout NZAC) Wellington, Trelissick Park, Malaise trap  , 19–23.XII.2003, F.R. Schnitzler. 1 ♀ ( NZACAbout NZAC) Lower Hutt   , Speedy Res, Malaise trap, 22–26.IV.2003, F.R. Schnitzler. 1 ♀ ( NZACAbout NZAC) Lower Hutt   , Speedy Res, Malaise trap, 8–12.XII.2003, F.R. Schnitzler. WO: 3 ♀ (1 ♀—NZAC, 2 ♀—ZISP) Whangamarino, wetland, 21.XI–17.XII.2007, C.H. Watts.

Distribution. North Island: AK, BP, CL, GB, HB, ND, TO, WN, WO. South Island: BR, MC, NN, OL. Widely distributed throughout New Zealand and the most abundant species of the genus.

NZAC

New Zealand Arthropod Collection

ZISP

Zoological Institute, Russian Academy of Sciences

AMNZ

Auckland Institute and Museum