Siro is a genus of mite harvestmen in the family Sironidae with 7 described species (6 extant, 1 extinct). All are found in Europe.
The genus Siro was described by Latreille, 1795 with the type species Siro rubens Latreille, 1802 only later designated (by subsequent monotypy).
These 7 species (including one extinct species) belong to the genus Siro: (after Giribet & Shear, 2010)
Many species once placed in Siro have since transferred to other genera, including:
To Arhesiro:
To Holosiro:
To Neosiro: