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

persistent identifier

http://treatment.plazi.org/id/03AD87D5-526F-3658-BBF7-CBC8FA41F02C

treatment provided by

Plazi

scientific name

Tersilochinae
status

 

Key to genera of Tersilochinae  occurring in New Zealand

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

- Fore wing with veins Rs+2 r and Rs  meeting at right angle ( Figs 10, 11 View Figure , 17–20 View Figure ). 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 

- 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 Figure , 96 View Figure , 102 View Figure ). Foveate groove of mesopleuron completely absent ( Figs 93 View Figure , 103 View Figure , 109 View Figure ). First tergite without any trace of glymma ( Fig. 108 View Figure ). Ovipositor unusually slender, proximally straight, with distal end up-curved, without any trace of a subapical notch or nodus ( Figs 92 View Figure , 97 View Figure ). Hind coxa of female with a conspicuous median ventral ridge ( Fig. 107 View Figure )....................................................... Gauldiana  gen. nov.

- Propodeum with apical area wider, as long as broad or transverse ( Figs 41 View Figure , 47 View Figure , 86 View Figure ). 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 Figure ). Propodeum with more or less distinct basal keel ( Fig. 86 View Figure ). First tergite smooth and shining, round in cross-section, without any trace of glymma (in the New Zealand species)....................................................................................................... Diaparsis Förster 

- 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 Figure ). Ovipositor with a broad and moderately deep subapical notch, with a slightly swelling on lower valve just before the narrowed apex ( Figs 43 View Figure , 51 View Figure , 57 View Figure ). Antennal flagellum long and slender, with 21 or more flagellomeres ( Figs 38 View Figure , 45 View Figure , 52 View Figure ). 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)