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The japygids (family Japygidae) are a taxon of hexapods, of the order Diplura, commonly known as forcepstails.
Extant genera
- Abjapyx <small>Silvestri, 1948</small>
- Afrojapyx <small>Silvestri, 1948</small>
- Allojapyx <small>Silvestri, 1948</small>
- Allurjapyx <small>Silvestri, 1930</small>
- Atlasjapyx <small>Chou & Huang, 1986</small>
- Austrjapyx <small>Silvestri, 1948</small>
- Burmjapyx <small>Silvestri, 1931</small>
- Catajapyx <small>Silvestri, 1933</small>
- Centrjapyx <small>Silvestri, 1948</small>
- Chiljapyx <small>Smith, 1962</small>
- Choujapyx <small>Huang, 2001</small>
- Congjapyx <small>Pagés, 1954</small>
- Ctenjapyx <small>Silvestri, 1948</small>
- Deutojapyx <small>Paclt, 1957</small>
- Dipljapyx <small>Silvestri, 1948</small>
- Ectasjapyx <small>Silvestri, 1929</small>
- Eojapyx <small>Smith, 1960</small>
- Epijapyx <small>Silvestri, 1933</small>
- Evalljapyx <small>Silvestri, 1911</small>
- Gallojapyx <small>Pagés, 1993</small>
- Gigasjapyx <small>Chou, 1984</small>
- Gollumjapyx <small>Sendra & Ortuño, 2006</small>
- Hainanjapyx <small>Chou in Chou & Chen, 1983</small>
- Hapljapyx <small>Silvestri, 1948</small>
- Hecajapyx <small>Smith, 1959</small>
- Henicjapyx <small>Silvestri, 1948</small>
- Heterojapyx <small>Verhoeff, 1904</small>
- Holjapyx <small>Silvestri, 1948</small>
- Hutanjapyx <small>Pagés, 1995</small>
- Indjapyx <small>Silvestri, 1931</small>
- Isojapyx <small>Silvestri, 1948</small>
- Japygellus <small>Silvestri, 1930</small>
- Japygianus <small>Silvestri, 1947</small>
- Japyginus <small>Silvestri, 1930</small>
- Japyx <small>Haliday, 1864</small>
- Kinabalujapyx <small>Pagés, 1994</small>
- Kohjapyx <small>Pagés, 1953</small>
- Megajapyx <small>Verhoeff, 1904</small>
- Merojapyx <small>Silvestri, 1948</small>
- Mesjapyx <small>Silvestri, 1948</small>
- Metajapyx <small>Silvestri, 1933</small>
- Mixojapyx <small>Silvestri, 1933</small>
- Monojapyx <small>Paclt, 1957</small>
- Nanojapyx <small>Smith, 1959</small>
- Nelsjapyx <small>Smith, 1962</small>
- Neojapyx <small>Silvestri, 1933</small>
- Notojapyx <small>Paclt, 1957</small>
- Occasjapyx <small>Silvestri, 1948</small>
- Oncojapyx <small>Silvestri, 1948</small>
- Opisthjapyx <small>Silvestri, 1929</small>
- Parindjapyx <small>Silvestri, 1933</small>
- Pauperojapyx <small>Pagés, 1995</small>
- Penjapyx <small>Smith, 1962</small>
- Polyjapyx <small>Silvestri, 1948</small>
- Proncojapyx <small>Silvestri, 1948</small>
- Protjapyx <small>Silvestri, 1948</small>
- Provalljapyx <small>Silvestri, 1948</small>
- Psalidojapyx <small>Pagés, 2000</small>
- Rectojapyx <small>Pagés, 1954</small>
- Rossjapyx <small>Smith, 1962</small>
- Scottojapyx <small>Pagés, 1957</small>
- Shaanxijapyx <small>Chou in Chou & Chen, 1983</small>
- Silvestriapyx <small>Pagés, 1981</small>
- Sinjapyx <small>Silvestri, 1948</small>
- Troglojapyx <small>Pagés, 1980</small>
- Typhlolabia <small>Scudder, 1876</small>
- Ultrajapyx <small>Paclt, 1957</small>
- Unjapyx <small>Silvestri, 1948</small>
- Urojapyx <small>Pagés, 1955</small>
- Xenjapyx <small>Silvestri, 1948</small>
Extinct genera
- †Ferrojapyx <small>Wilson & Martill, 2001</small>
- †Onychojapyx <small>Pierce, 1950</small>