Belongs within: Cyphophthalmi.
Rakaia is a New Zealand genus of mite-like harvestmen possessing a strong ventral process on the palp trochanter (Boyer & Giribet 2007).
Characters (Boyer & Giribet 2007): Ozophores in dorsal 45° position. Eyes present,incorporated into ozophores either with or without lenses. No projections surrounding gonostome. Scopulae present on anal plate, or scopulae originating from tergite VIII. Ventral process present on palp trochanter. Robust ventral process of chelicera absent. Conspicuous longitudinal apodeme on second cheliceral segment. Lack of solea in tarsus I.
<==Rakaia Hirst 1925BG09
| i. s.: R. collaris Roewer 1942G00
| R. isolata Forster 1952BG07 [=R. antipodiana isolataF54]
|--+--+--R. florensis (Forster 1948) [=Neopurcellia florensis]BG07
| | `--R. minutissima (Forster 1948) [=Neopurcellia minutissima]BG07
| `--+--R. lindsayi Forster 1952BG07
| `--R. stewartiensis Forster 1948BG07
`--+--R. sorenseni Forster 1952BG09, BG07
| |--R. s. sorenseniBG07
| `--R. s. digitata Forster 1952BG07
`--+--+--+--R. media Forster 1948BG09, BG07 [=R. dorothea mediaF54]
| | | |--R. m. mediaBG07
| | | `--R. m. insula Forster 1952BG07 [=R. dorothea insulaF54]
| | `--R. solitaria Forster 1948BG09, BG07 [=R. antipodiana solitariaF54]
| `--+--R. magna Forster 1948BG09, BG07
| | |--R. m. magnaBG07
| | `--R. m. australis Forster 1952BG07
| `--+--R. dorothea (Phillipps & Grimmett 1932)BG09, BG07 [=Purcellia dorotheaG00]
| `--R. uniloca Forster 1952BG09, BG07
`--+--R. macra Boyer & Giribet 2003BG09, BG07
`--+--*R. antipodiana Hirst 1925BG07, BG09, BG07
`--R. pauli Forster 1952BG09, BG07 [=R. antipodiana pauliF54]
*Type species of generic name indicated
References
[BG07] Boyer, S. L., & G. Giribet. 2007. A new model Gondwanan taxon: systematics and biogeography of the harvestman family Pettalidae (Arachnida, Opiliones, Cyphophthalmi), with a taxonomic revision of genera from Australia and New Zealand. Cladistics 23 (4): 337–361.
[BG09] Boyer, S. L., & G. Giribet. 2009. Welcome back New Zealand: regional biogeography and Gondwanan origin of three endemic genera of mite harvestmen (Arachnida, Opiliones, Cyphophthalmi). Journal of Biogeography 36: 1084–1099.
[F54] Forster, R. R. 1954. The New Zealand harvestmen (sub-order Laniatores). Canterbury Museum Bulletin 2: 1–329.
[G00] Giribet, G. 2000. Catalogue of the Cyphophthalmi of the world (Arachnida, Opiliones). Revista Ibérica de Aracnología 2: 49–76.