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Synthetonychia minuta

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

Suborder

Laniatores

Superfamily

Travunioidea

Family

Synthetonychiidae

Genus

Synthetonychia

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

TaxonomyEdit

SpecimensEdit

  • S.m. male(1) (holotype): Canterbury Museum, Christchurch; #881[1]
  • S.m. female(1) (allotype): Canterbury Museum, Christchurch; #895[1]
  • S.m. female(1) (not designated): Canterbury Museum, Christchurch; #882[1]
  • S.m. female(1) (not designated): Dominion Museum, Wellington; #2/885[1]
  • S.m. female(1) (not designated): Dominion Museum, Wellington; #2/883[1]

DiagnosisEdit

(from Forster, 1954[1])

  • Color: The entire animal is golden-brown.
  • Body: Carapace closely covered with small granules, tergal region shiny,with a regular pattern formed by single rows of small granules as shown in Fig. 771. The free tergites and sternites are smooth. The eyes are set at about ¼ of the length of the scute, and are separated from each other by a distance equal to 3x their diameter. The genital operculum is triangular in shape, apex sharply pointed, width at base equal to 2/3 of its length (Fig. 774).
  • Genitalia: The aedeagus is slender, tubular, with a strong elbow near the mid-point, ventral plate extending to elbow, with a pair of long setae near the base, each set in a socket, and a similar, but smaller sub-distal pair as shown in Fig. 773.
  • Chelicerae: Basal segment with a distended area on the disto-dorsal surface. Second segment with low setose tubercles on the dorsal surface.
  • Pedipalls: (Fig 772). There is a small conical tubercle present on the proximo-dorsal surface of the femur and a similarly shaped, smaller tubercle on the distal pro-lateral surface of the trochanter. The proximo-ventral surface of the femur is slightly raised but does not form a prominent process. The tibia lacks a disto-dorsal process. The tarsus is slender, straight,with a strong disto-ventral spine, 2/3 of the length of the tarsal claw.
  • Legs: Smooth. Tarsal formula 3.5.4.4. Tarsal claws of legs 3 and 4 as in Fig. 775, arolium extending well beyond the median branch, terminated sharply.
  • Measurements (mm): Scute: 1.06x0.88; Legs: 2.01, 2.77, 2.34, 3.08; Pedipalp: 1.78; Chelicera: 0.54
  • Female: Similar to male. Pedipalp more slender, without tubercles or tarsal spine. Genital operculum wider than it is long.
  • Measurements (mm): Scute: 1.05x0.92; Legs: 1.96, 2.61, 2.29, 3.04; Pedipalp: 1.38; Chelicera: 0.48

NotesEdit

  • Location: West coast of New Zealand South Island from Greymouth to Milford and Resolution Island[1]

LiteratureEdit

  • Forster, 1954:290[1]
  • World Checklist[2]

Additional images - GalleryEdit

ReferencesEdit

  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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