Belongs within: Triaenonychidae.
Nuncia is a New Zealand genus of triaenonychid harvestmen with tergal areas on the scutum not defined by transverse grooves (Forster 1954).
Characters (Forster 1954): Eyemound rising directly from anterior margin of carapace, usually smooth and rounded, sometimes with small apical tubercle or produced forward. Scute including anterior margin of carapace without prominent tubercles or pustules. Tergal areas not defined. Legs unarmed, calcaneus much shorter than astragalus and never notched. Tarsal formula 3–4, 5–15, 4, 4. Side branches of claws 3 and 4 much smaller and weaker than median prong. Both sexual and male dimorphism present.
<==Nuncia Loman 1902K03 [incl. Metanuncia Roewer 1915F54]
| i. s.: N. seriata Roewer 1914R23
|--N. (Nuncia)F65
| |--N. (N.) obesa (Simon 1899)DB21 [=Triaenonyx obesusF54; incl. *N. sperata Loman 1902F54]
| | |--N. o. obesaKMS14
| | |--N. o. grimmetti Forster 1954KMS14
| | |--N. o. magna Forster 1954KMS14 [=N. obesa maximaF54]
| | `--N. o. rotunda Forster 1954KMS14
| |--N. (N.) arcuata Forster 1954F54
| | |--N. a. arcuataKMS14
| | `--N. a. aorangiensis Forster 1954KMS14
| |--N. (N.) conjuncta Forster 1954F54
| | |--N. c. conjunctaKMS14
| | |--N. c. fiordensis Forster 1954KMS14 [=N. magnopercula fiordensisF54]
| | `--N. c. magnopercula Forster 1954KMS14
| |--N. (N.) constantia Forster 1954F54
| |--N. (N.) dentifera Forster 1954F54
| |--N. (N.) fatula Forster 1954F54
| |--N. (N.) grandis Forster 1954F54
| |--N. (N.) heteromorpha Forster 1954F54
| | |--N. h. heteromorphaKMS14
| | `--N. h. prolobula Forster 1954KMS14
| |--N. (N.) inopinata Forster 1954F54
| |--N. (N.) kershawi Forster 1965F54
| |--N. (N.) marchanti Forster 1965F54
| |--N. (N.) oconnori Forster 1954F54
| | |--N. o. oconnoriKMS14
| | |--N. o. conocula Forster 1954KMS14
| | `--N. o. kopua Forster 1954KMS14
| |--N. (N.) paucispinosa Forster 1954F54 [=N. obesa paucispinosaBS20, N. oconnori paucispinosaF54]
| |--N. (N.) stabilis Forster 1954F54
| |--N. (N.) sulcata Forster 1954F54
| |--N. (N.) tapanuiensis Forster 1954F54
| |--N. (N.) townsendi Forster 1965F54
| |--N. (N.) tumula Forster 1954F54
| `--N. (N.) vidua Forster 1954F54
|--N. (Corinuncia Forster 1954)F54
| |--N. (*C.) coriacea (Pocock 1902)F54, KMS14 [=Triaenonyx coriaceusF54, T. coriaceaF54, T. verrucosa (l. c.)H20]
| | |--N. c. coriaceaKMS14
| | |--N. c. cockayni (Hogg 1920)DB21 [=Triaenonyx cockayniKMS14]
| | `--N. c. ovata Roewer 1915KMS14
| |--N. (C.) elongata Forster 1954F54
| |--N. (C.) frustrata Forster 1954F54
| |--N. (C.) levis Forster 1954F54
| |--N. (C.) nigriflava Roewer 1923F54
| | |--N. n. nigriflavaF54
| | |--N. n. parva (Grimmett & Phillipps 1932)KMS14 [=Triaenonyx parvaF54]
| | `--N. n. parvocula Forster 1954KMS14
| |--N. (C.) pallida Forster 1954F54
| |--N. (C.) planocula Forster 1954F54
| |--N. (C.) smithi Hogg 1920F54
| |--N. (C.) stewartia (Hogg 1910) [=Triaenonyx stewartius, Metanuncia stewartia]F54
| | |--N. s. stewartiaKMS14
| | `--N. s. tumosa Forster 1954KMS14
| |--N. (C.) sublaevis (Pocock 1902)F54, KMS14 (see below for synonymy)
| |--N. (C.) tumidarta Forster 1954F54
| `--N. (C.) variegata (Hogg 1920) [=Triaenonyx variegata, N. variagata (l. c.)]F54
| |--N. v. variegataKMS14
| |--N. v. australis Forster 1954KMS14
| |--N. v. delli Forster 1954KMS14
| `--N. v. granulata Forster 1954KMS14
`--N. (Micronuncia Forster 1954)F54
|--N. (*M.) roeweri Forster 1954F54
| |--N. r. roeweriKMS14
| |--N. r. callida Forster 1954KMS14
| |--N. r. demissa Forster 1954KMS14
| |--N. r. gelida Forster 1954KMS14
| |--N. r. humilis Forster 1954KMS14
| |--N. r. moderata Forster 1954KMS14
| |--N. r. pilgrimi Forster 1954KMS14
| |--N. r. seditiosa Forster 1954KMS14
| `--N. r. unica Forster 1954KMS14
|--N. (M.) alpha Forster 1954F54
`--N. (M.) contrita Forster 1954F54
Nuncia (Metanuncia) sublaevis (Pocock 1902)F54, KMS14 [=Triaenonyx sublaevisF54; incl. T. testaceus Hogg 1910F54, Metanuncia testaceaF54]
*Type species of generic name indicated
References
[BS20] Baker, C. M., K. Sheridan, S. Derkarabetian, A. Pérez-González, S. Vélez & G. Giribet. 2020. Molecular phylogeny and biogeography of the temperate Gondwanan family Triaenonychidae (Opiliones: Laniatores) reveals pre-Gondwanan regionalisation, common vicariance, and rare dispersal. Invertebrate Systematics 34: 637–660.
[DB21] Derkarabetian, S., C. M. Baker, M. Hedin, C. E. Prieto & G. Giribet. 2021. Phylogenomic re-evaluation of Triaenonychoidea (Opiliones: Laniatores), and systematics of Triaenonychidae, including new families, genera and species. Invertebrate Systematics 35: 133–157.
[F54] Forster, R. R. 1954. The New Zealand harvestmen (sub-order Laniatores). Canterbury Museum Bulletin 2: 1–329.
[F65] Forster, R. R. 1965. Harvestmen of the sub-order Laniatores from New Zealand caves. Records of the Otago Museum—Zoology 2: 1–18.
[H20] Hogg, H. R. 1920. Some Australian Opiliones. Proceedings of the Zoological Society of London 1920: 31–48.
[K03] Kury, A. B. 2003. Annotated catalogue of the Laniatores of the New World (Arachnida, Opiliones). Revista Ibérica de Aracnología, volumen especial monográfico 1: 1–337.
[KMS14] Kury, A. B., A. C. Mendes & D. R. Souza. 2014. World checklist of Opiliones species (Arachnida). Part 1: Laniatores—Travunioidea and Triaenonychoidea. Biodiversity Data Journal 2: e4094.
[R23] Roewer, C.-F. 1923. Die Weberknechte der Erde: Systematische Bearbeitung der bisher bekannnten Opiliones. Gustav Fischer: Jena.