Tersilochinae

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 : 44-45

publication ID	https://doi.org/ 10.11646/zootaxa.4425.1.3
publication LSID	lsid:zoobank.org:pub:BBAFBFC5-9A0B-4519-AB75-DF1EBB702D7C
DOI	https://doi.org/10.5281/zenodo.5978583
persistent identifier	https://treatment.plazi.org/id/03AD87D5-526F-3658-BBF7-CBC8FA41F02C
treatment provided by	Plazi
scientific name	Tersilochinae
status

Treatment

Key to genera of Tersilochinae occurring in New Zealand

1. Fore wing with veins Rs+2 r and Rs meeting at obtuse angle ( Figs 12–16 View FIGURES 10–15 View FIGURES 16–20 ). Head with foramen magnum unusually high, at or above level of upper margin of eye ( Figs 60, 63 View FIGURES 59–64 , 66, 71 View FIGURES 65–71 ). Antennae inserted low down, at or below level of centre of eye ( Figs 60, 63 View FIGURES 59–64 , 66, 71 View FIGURES 65–71 ). Mesosoma sometimes strongly compressed ( Figs 62 View FIGURES 59–64 , 70 View FIGURES 65–71 ). Female with upper valve of ovipositor with a steplike nodus ( Figs 64 View FIGURES 59–64 , 68 View FIGURES 65–71 ). Male genital capsule unusually large ( Fig. 76 View FIGURES 72–79 ).......................... Barycnellus gen. nov.

- Fore wing with veins Rs+2 r and Rs meeting at right angle ( Figs 10, 11 View FIGURES 10–15 , 17–20 View FIGURES 16–20 ). Head with foramen magnum not unusually high, only slightly above centre, below level of upper margin of eye. Antennae inserted at or above level of centre of eye. Mesosoma weakly compressed or subcylindrical. Ovipositor without a step-like nodus, often with a deep to very shallow subapical notch. Male genital capsule not unusually large......................................................... 2

2. Mandibles strongly twisted, so that when closed in front view they appear unidentate. Ovipositor apex with a distinctive double nodus............................................................................. Zealochus Khalaim View in CoL

- Mandibles not or weakly twisted (except G. triangulata ), always with lower tooth visible when they are closed so they are clearly bidentate. Ovipositor various, never with an apparent double nodus........................................ 3

3. Propodeum with apical area narrow, distinctly elongate ( Figs 91 View FIGURES 88–92 , 96 View FIGURES 93–97 , 102 View FIGURES 98–103 ). Foveate groove of mesopleuron completely absent ( Figs 93 View FIGURES 93–97 , 103 View FIGURES 98–103 , 109 View FIGURES 104–109 ). First tergite without any trace of glymma ( Fig. 108 View FIGURES 104–109 ). Ovipositor unusually slender, proximally straight, with distal end up-curved, without any trace of a subapical notch or nodus ( Figs 92 View FIGURES 88–92 , 97 View FIGURES 93–97 ). Hind coxa of female with a conspicuous median ventral ridge ( Fig. 107 View FIGURES 104–109 )....................................................... Gauldiana gen. nov.

- Propodeum with apical area wider, as long as broad or transverse ( Figs 41 View FIGURES 38–44 , 47 View FIGURES 45–51 , 86 View FIGURES 80–87 ). Foveate groove of mesopleuron present or absent. First tergite with or without glymma. Ovipositor basally normally stout, sometimes evenly tapered towards distal end, but never entirely slender throughout, and usually with a nodus and/or a shallow to deep dorsal subapical notch or depression. Hind coxa of female unspecialized........................................................................ 4

4. Fore wing with vein 2m-cu distinctly postfurcal ( Fig. 28 View FIGURES 27–31 ). Propodeum with more or less distinct basal keel ( Fig. 86 View FIGURES 80–87 ). First tergite smooth and shining, round in cross-section, without any trace of glymma (in the New Zealand species)....................................................................................................... Diaparsis Förster View in CoL

- Fore wing with vein 2m-cu antefurcal or interstitial. Propodeum usually with either a pair of basal carinae, or with a broad furrow or shallow impressed rugose area along midline in front of transverse carina. First tergite usually extensively striate or granulate, with shallow to deep glymma.................................................................... 5

5. Fore wing with vein 2m-cu distinctly antefurcal ( Figs 10, 11 View FIGURES 10–15 ). Ovipositor with a broad and moderately deep subapical notch, with a slightly swelling on lower valve just before the narrowed apex ( Figs 43 View FIGURES 38–44 , 51 View FIGURES 45–51 , 57 View FIGURES 52–58 ). Antennal flagellum long and slender, with 21 or more flagellomeres ( Figs 38 View FIGURES 38–44 , 45 View FIGURES 45–51 , 52 View FIGURES 52–58 ). Body length 4.0– 4.7 mm ....................... Aotearoazeus gen. nov.

- Fore wing with vein 2m-cu interstitial or slightly antefurcal. Ovipositor with a shallow weak subapical depression, without a swelling on lower valve before narrowed apex. Antennal flagellum short, with less than 20 flagellomeres. Body length 1.7–3.5 mm .............................................................. undescribed genus (will be revised in Part 2)