Taracus
Taracus is a genus of harvestman, or Opiliones, typically found living in limestone and lava caves in the United States. They grow to a size of .

Taxonomy
Taracus contains the following species, per World Catalog of Opiliones. Of the 14 described species (as of 2023), almost all are found in the United States.

 Taracus aspenae Shear, 2018 (USA: Oregon)
 Taracus audisioae Shear, 2016 (USA: California)
 Taracus birsteini Ljovuschkin, 1971 (Russia: Primorsky Krai)
 Taracus carmanah Shear, 2016 (Canada: British Colombia)
 Taracus fluvipileus Shear, 2016 (USA: California)
 Taracus gertschi Goodnight &  Goodnight, 1942 (USA: Idaho, Oregon, etc; Canada: Alberta, British Colombia)
 Taracus marchingtoni Shear & Warfel, 2016 (USA: Oregon)
 Taracus packardi Simon, 1879 (USA: Colorado, New Mexico)
 Taracus pallipes Banks, 1894 (USA: Washington, Oregon, California)
 Taracus silvestrii Roewer, 1930 (USA: Oregon)
 Taracus spesavius Shear, 2016 (USA: Nevada)
 Taracus taylori Shear, 2016 (USA: Nevada)
 Taracus timpanogos Shear, 2016 (USA: Utah)
 Taracus ubicki Shear, 2016 (USA: California)

Elsewhere (as of 2023):
For Taracus spinosus Banks, 1894 and its synonym Taracus malkini Goodnight &  Goodnight, 1945 see Oskoron spinosus (Banks, 1894). For Taracus nigripes Goodnight &  Goodnight, 1943 see as synonym of Taracus packardi Simon, 1879.

References

Harvestmen
Arthropods of the United States