Belongs within: Chthoniidae.
The Tyrannochthoniini are a group of chthoniid pseudoscorpions with very thin cuticle on the anterior part of the carapace (Harvey 2009).
Characters (Harvey 2009): Dorsal surface of chelal hand bearing one or two rows of chemosensory setae; coxal spines present on coxae II only; intercoxal tubercle absent; cuticle of anterior part of carapace very thin; submedian setae of anterior row of carapace absent; lamina superior broad, strongly fimbriate; spinneret of movable finger of chela absent or low tubercle; trichobothria ib and isb situated slightly proximad of middle of chelal palm; sensilla p1 and p2 of movable chelal finger not contiguous; male sternite III elongate medially with very long notch.
<==TyrannochthoniiniH09
|--Maorichthonius Chamberlin 1925H09
|--Vulcanochthonius Muchmore 2000H09
|--Troglochthonius Beier 1939H09
| |--*T. mirabilis Beier 1939H09
| `--T. doratodactylus Helversen 1968H09
|--Tyrannochthonius Chamberlin 1929H09 [incl. Parachthonius Caporiacco 1949EH08, Pholeochthonius Beier 1976EH08]
| |--*T. terribilis (With 1906) [=Chthonius terribilis]H81
| |--T. aladdinensis Chamberlin 1995EH08
| |--T. aralu Chamberlin 1995EH08
| |--T. archeri Chamberlin 1995EH08
| |--T. aridus Edward & Harvey 2008T13
| |--T. attenuatus Muchmore 1996EH08
| |--T. avernicola Chamberlin 1995EH08
| |--T. bagus Harvey 1988EH08
| |--T. barri Muchmore 1996EH08
| |--T. basme Edward & Harvey 2008HL08
| |--T. billhumphreysi Edward & Harvey 2008EH08
| |--T. brooksi Harvey 1991H91
| |--T. butleri Harvey 1991H91
| |--T. caecatus (Beier 1976)EH08
| |--T. cavernicola (Beier 1976) [=Paraliochthonius (*Pholeochthonius) cavernicola]EH08
| |--T. cavicola (Beier 1967)EH08
| |--T. chamberlini Muchmore 1996EH08
| |--T. charon Muchmore 1996EH08
| |--T. diabolus Muchmore 1996EH08
| |--T. erebicus Muchmore 1996EH08
| |--T. felix Muchmore 1996EH08
| |--T. fiskei Muchmore 1996EH08
| |--T. floridensisM90
| |--T. garthhumphreysi Edward & Harvey 2008T13
| |--T. gnomus Muchmore 1996EH08
| |--T. halopotamus Muchmore 1996EH08
| |--T. hypogeus Muchmore 1996EH08
| |--T. infernalis Muchmore 1996EH08
| |--T. jonesi Chamberlin 1995EH08
| |--T. laevis Beier 1966H81
| |--‘*Parachthonius’ meneghettii Caporiacco 1949EH08
| |--T. nanus (Beier 1966) [=Morikawia nana]J97
| |--T. nergal Chamberlin 1995EH08
| |--T. orpheus Muchmore 1996EH08
| |--T. osiris Chamberlin 1995EH08
| |--T. parvus Chamberlin 1995EH08
| |--T. pecki Muchmore 1996EH08
| |--T. pholetor Muchmore 1996EH08
| |--T. pluto Chamberlin 1995EH08
| |--T. psoglavi Ćurčić 1990EH08
| |--T. rex Harvey 1989EH08
| |--T. ribeiraiM01
| |--T. satan Muchmore 1996EH08
| |--T. semihorridus Beier 1969EH08
| |--T. sheltae Muchmore 1996EH08
| |--T. skeletonis Muchmore 1996EH08
| |--T. souchomalus Edward & Harvey 2008EH08
| |--T. stygius Muchmore 1996EH08
| |--T. tartarus Muchmore 1996EH08
| |--T. tenuis Chamberlin 1995EH08
| |--T. torodei Muchmore 1996EH08
| `--T. troglodytesM90
|--Lagynochthonius Beier 1951H09
| |--*L. johni (Redikorzev 1922)H81, H09 [=Chthonius johniH81]
| |--L. asema Edward & Harvey 2008HL08
| |--L. australicus (Beier 1966) [=Tyrannochthonius (Lagynochthonius) australicus]H81
| |--L. chamorro (Chamberlin 1947) [=Tyrannochthonius chamorro]EH08
| |--L. curvidigitatus Mahnert 1997EH08
| |--L. fragilis Judson 2007EH08
| |--L. kapi Harvey 1988EH08
| |--L. leemouldi Edward & Harvey 2008EH08
| |--L. mordor Harvey 1989EH08
| |--L. novaeguineae [=Tyrannochthonius (Lagynochthonius) novaeguineae]H83
| |--L. polydentatus Edward & Harvey 2008EH08
| |--L. salomonensis (Beier 1966) [=Tyrannochthonius salomonensis]J97
| `--L. typhlus Muchmore 1991EH08
`--Paraliochthonius Beier 1956 (see below for synonymy)H09
|--*P. singularis (Menozzi 1924) [=Chthonius singularis]H09
|--P. azanius Mahnert 1986H09
|--P. barrancoi (Carabajal Márquez, Garcia Carrillo & Rodríguez Fernández 2001) [=*Stygiochthonius barrancoi]H09
|--P. canariensis Vachon 1961H09
|--P. carpenteri Muchmore 1984H09
|--P. cavalensis Zaragoza 2004H09
|--P. cavicolus (Beier 1967) [=Morikawia cavicola]H81
|--P. curvidigitatus (Mahnert 1997)H09
|--P. darwini Harvey 2009H09
|--P. hoestlandti Vachon 1960H09
|--P. insulae Hoff 1963H09
|--P. johnstoni (Chamberlin 1923) [=Chthonius johnstoni, *Morikawia johnstoni]H09
|--P. martini Mahnert 1989H09
|--P. mexicanus Muchmore 1972H09
|--P. mirus Mahnert 2002H09
|--P. puertoricensis Muchmore 1967H09
|--P. queenslandicus (Beier 1969) [=Morikawia queenslandica]H81
|--P. semihorridus (Beier 1969) [=Morikawia semihorrida]H81
|--P. setiger (Mahnert 1997)H09
|--P. superstes (Mahnert 1986)H09
|--P. takashimai (Morikawa 1958)H09
|--P. tenebrarum Mahnert 1989H09
|--P. vachoni Harvey 2009H09
|--P. weygoldti Muchmore 1967H09
`--‘Morikawia’ wlassicsiH83
Paraliochthonius Beier 1956 [incl. Morikawia Chamberlin 1962, Stygiochthonius Carabajal Márquez, Garcia Carrillo & Rodríguez Fernández 2001]H09
*Type species of generic name indicated
References
[EH08] Edward, K. L., & M. S. Harvey. 2008. Short-range endemism in hypogean environments: the pseudoscorpion genera Tyrannochthonius and Lagynochthonius (Pseudoscorpiones: Chthoniidae) in the semiarid zone of Western Australia. Invertebrate Systematics 22: 259–293.
[H83] Hammen, L. van der. 1983. Contribution to the knowledge of the soil-fauna of New Guinea. Zoologische Verhandelingen 206: 1–36.
[H81] Harvey, M. S. 1981. A checklist of the Australian Pseudoscorpionida. Bulletin of the British Arachnological Society 5 (6): 237–252.
[H91] Harvey, M. S. 1991. The cavernicolous pseudoscorpions (Chelicerata: Pseudoscorpionida) of Cape Range, Western Australia. Records of the Western Australian Museum 15 (3): 487–502.
[H09] Harvey, M. S. 2009. The first Australasian species of the halophilic pseudoscorpion genus Paraliochthonius (Pseudoscorpiones: Chthoniidae). Records of the Western Australian Museum 25 (3): 329–344.
[HL08] Harvey, M. S., & M. C. Leng. 2008. The first troglomorphic pseudoscorpion of the family Olpiidae (Pseudoscorpiones), with remarks on the composition of the family. Records of the Western Australian Museum 24 (4): 387–394.
[J97] Judson, M. L. I. 1997. Catalogue of the pseudoscorpion types (Arachnida: Chelonethi) in the Natural History Museum, London. Occasional Papers on Systematic Entomology 11: 1–54.
[M01] Mahnert, V. 2001. Cave-dwelling pseudoscorpions (Arachnida, Pseudoscorpiones) from Brazil. Revue Suisse de Zoologie 108 (1): 95–148.
[M90] Muchmore, W. B. 1990. Pseudoscorpionida. In: Dindal, D. L. (ed.) Soil Biology Guide pp. 503–527. John Wiley & Sones: New York.
[T13] Taylor, C. K. 2013. Annotated bibliography for Barrow Island terrestrial invertebrates. Records of the Western Australian Museum Supplement 83: 135–144.