Zealochus abominosus 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 : 539-541

Zealochus abominosus Khalaim & Ward , sp. nov.

( Figs 5 , 15, 46–49 , 65)

Comparison. The new species is very similar to Z. stepheni from which it differs by the colour pattern of head ( Figs 46–48 ), somewhat less slender antennal flagellum ( Fig. 46 ), shorter distance between propodeal spiracle and pleural carina ( Fig. 49 ) and shape of the ovipositor apex.

Description. Female. Body length 3.0 mm. Fore wing length 2.5 mm. Flagellum clavate, with 16–17 flagellomeres (16 in holotype); subbasal flagellomeres 2.0–2.5× and subapical flagellomere 1.0–1.2× as long as broad ( Fig. 46 ). Foveate groove weak to moderately deep, with short transverse wrinkles, long and usually reaching front margin of mesopleuron anteriorly (Fig. 15). Propodeal spiracle adjacent to pleural carina or separated from it by distance shorter than one diameter of spiracle. Fore wing with vein 2m-cu interstitial or slightly antefurcal (Fig. 5). Ovipositor weakly upcurved apically (Fig. 15); sheath twice as long as hind tibia.

Almost completely yellowish orange or orange species (Fig. 15). Head with interocellar area fuscous. Mandibular teeth reddish black. Antennal flagellum apically fuscous. Pterostigma brown. Legs yellow, hind coxa yellowish orange, hind tibia and tarsus sometimes infuscate. Metasoma posterior to second tergite brownish or blackish dorsally; propodeum, metapleuron and first tergite sometimes darkened with brown.

Male. Flagellum very slender, filiform, with 18 flagellomeres; malar space shorter. Otherwise similar to female.

Etymology. From the Latin abominosus (full of ill omens, portentous).

Material examined. Holotype female (NZAC), North Island, AK, Walker Bush Track, sweeping, 5.XI.1976, coll. A.K. Walker, NZAC04036670 Paratypes. BP: 1 ♀ ( NZAC) Rereauira Swamp , Malaise trap, 26.I–9.III.1993, coll. J.S. Dugdale. ND: 1 ♀ ( NZAC) Poor Knights Island , Tawhiti Rahi Island, Eastern Ridge, sweeping in forest, mainly Metrosideros excelsa , 9.XII.1980, coll. M.F. Tocker. 1 ♀ ( NZAC) same locality, sweeping in regenerated area, 9.XII.1980, coll. C.F. Butcher. 1 ♀ ( AMNZ) same island, swept or beaten lower main track, 2.XII.1980, coll. K.A.J. Wise. 1 ♀ ( ZISP) Poor Knights Islands , Aorangi Island, Crater Bay forest, at night, 15.XI.1981, coll. J.S. Dugdale. 1 ♀ ( NZAC) same island, Puweto Valley , beaten at night, 16.XI.1981, coll. J.C. Watt. 1 ♂ ( NZAC) same locality, 80 m, Malaise trap in Beilschmiedia taraisi site, 11–16.XI.1981, coll. J.S. Dugdale.

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Distribution. North Island (ND, AK, BP).

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 46–51. Zealochus abdominosus sp. nov., paratype, female: 46—head with antenna, lateral; 47—head, front; 48— head and mesoscutum, dorsal; 49—propodeum and base of metasoma, dorsolateral. Zealochus stepheni sp. nov., paratype female: 50—head with antennae, lateral; 51—head, front.