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Synthetonychia wairarapae

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Synthetonychia wairarapae
Synthetonychia wairarapae Forster-1954
Synthetonychia wairarapae Forster, 1954 (from original description)









Synthetonychia wairarapae Forster, 1954 belongs to the genus Synthetonychia (Laniatores:Synthetonychiidae).



  • S.w. male(1) (holotype): Dominion Museum, Wellington; #2/897[1]
  • S.w. female(1) (allotype): Dominion Museum, Wellington; #2/898[1]
  • S.w. male(1) (paratype): Dominion Museum, Wellington; #2/899[1]
  • S.w. male(1) (paratype): Canterbury Museum, Christchurch; #890[1]
  • S.w. male(1) (not designated): Dominion Museum, Wellington; #2/900[1]


(from Forster, 1954[1])

  • Color: Uniform orange-brown.
  • Body: The scute is finely granulate. The eyes are situated at 2/5 of the length of the scute, separated from each other by a distance equal to almost 4x their diameter. Free tergites and sternites smooth. Genital operculum as shown in Fig. 780, sub-triangular in shaper, with a short apical trunk, without an apical indentation or lateral lobes, longer than wide at the base in the ratio 4:3.
  • Genitalia: Basal portion of aedeagus sub-conical, apical portion narrow, tubular, terminated by an arrow-head shaped process as shown in Fig. 779. The ventral plate is represented by a flattened shield which narrows evenly distally, and extends to the apex of the aedeagus. It is provided with 4 pairs of small spinous setae on the lateral margins, 2 pairs at about 1/3 and 2 sub-distal pairs (Fig. 779).
  • Chelicerae: Basal segment with a small swelling on the disto-dorsal surface. Second segment with few low tubercles on the dorsal surface.
  • Pedipalls: (Fig 776). There is a small tubercle on the disto-dorsal surface of the trochanter. The femur is not modified. Tibia without a disto-dorsal process. The tarsus is relatively slender, not sinuous,with a small lobe on the dorsal surface at 3/5 of its length, beyond which there is a deep indentation (Fig. 777). Tarsal spine absent.
  • Legs: There are a few small setose tubercles, most prominent on the femora. Tarsal formula The tarsal claws of legs 3 and 4 are as shown in Fig. 781. There are three strong lateral branches and a small accessory process; the arolium extends beyond the median plate and terminates sharply.
  • Measurements (mm): Scute: 1.36x1.16; Legs: 2.41, 3.29, 3.11, 3.85; Pedipalp: 2.59; Chelicera: 0.75
  • Female: Similar in structure to male. The genital operculum is wider than it is long in the ratio of 11:7. The pedipalps are as shown in Fig. 778.
  • Measurements (mm): Scute: 1.08x0.96; Legs: 2.05, 2.90, 2.66, 3.10; Pedipalp: 1.88; Chelicera: 0.62


  • Location: South-eastern part of North Island New Zealand, from Wairarapa District (Mount Ross & Turanganui) to Taihape.[1]


  • Forster, 1954:292[1]
  • World Checklist[2]

Additional images - GalleryEdit


  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 Forster, R.R. (1954) The New Zealand harvestmen (sub-order Laniatores). Canterbury Museum bulletin, Christchurch, 2, 1–329.
  2. Kury AB, Mendes AC & Souza DR (2014) World Checklist of Opiliones species (Arachnida). Part 1: Laniatores – Travunioidea and Triaenonychoidea. Biodiversity Data Journal 2: e4094. doi: 10.3897/BDJ.2.e4094

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