Ryuthela is a spider genus in the subfamily Heptathelinae, family Liphistiidae. This genus, as well as their closest relatives, Heptathela, formed when land masses from present-day Japan separated from the rest of Asia, forming islands in the late Miocene. Speciation of Ryuthela and Heptathela also occurred during this time, because of the further separation of islands, causing allopatric speciation.
They exhibit intraspecific variation in female genitalia despite being morphologically alike. Male spiders live only a few weeks after reaching maturity whereas female spiders can live up to 10 to 20 years (Huber, T. & Haug, C., 2021).
Species list
, the World Spider Catalog accepted the following species:
- Ryuthela banna <small>Xu, Liu, Ono, Chen, Kuntner & Li, 2017</small> â Ryukyu Islands
- Ryuthela henoko <small>Xu, Liu, Ono, Chen, Kuntner & Li, 2017</small> â Ryukyu Islands
- Ryuthela hirakubo <small>Xu, Liu, Ono, Chen, Kuntner & Li, 2017</small> â Ryukyu Islands
- Ryuthela iheyana <small>Ono, 2002</small> â Ryukyu Islands
- Ryuthela ishigakiensis <small>Haupt, 1983</small> â Ryukyu Islands
- Ryuthela kisenbaru <small>Xu, Liu, Ono, Chen, Kuntner & Li, 2017</small> â Ryukyu Islands
- Ryuthela motobu <small>Xu, Liu, Ono, Chen, Kuntner & Li, 2017</small> â Ryukyu Islands
- Ryuthela nago <small>Xu, Liu, Ono, Chen, Kuntner & Li, 2017</small> â Ryukyu Islands
- Ryuthela nishihirai <small>(Haupt, 1979)</small> â Ryukyu Islands
- Ryuthela owadai <small>Ono, 1997</small> â Ryukyu Islands
- Ryuthela sasakii <small>Ono, 1997</small> â Ryukyu Islands
- Ryuthela shimojanai <small>Xu, Liu, Ono, Chen, Kuntner & Li, 2017</small> â Ryukyu Islands
- Ryuthela tanikawai <small>Ono, 1997</small> â Ryukyu Islands
- Ryuthela unten <small>Xu, Liu, Ono, Chen, Kuntner & Li, 2017</small> â Ryukyu Islands
- Ryuthela yarabu <small>Xu, Liu, Ono, Chen, Kuntner & Li, 2017</small> â Ryukyu Islands
References