See text Arhesiro is a genus of mite harvestman in the family Sironidae (as of 2023).

[1][2] It is found in North America, only in the US, with one species in California, another in Oregon.

[1][3][4][5] The genus Arhesiro was described by Karaman, 2022, with the type species Siro clousi Giribet & Shear, 2010.

[6] Before then, the two included species Arhesiro clousi and Arhesiro sonoma were previously placed in Siro.

These species belong to the genus Arhesiro Karaman, 2022: The genus is masculine, derived from Siro