- Eremobia flexuosa Serville, 1838: 709.
Holotype; male; ec04bb22-a328-44a1-9ab0-c017a11e3c83; Spain: south of Teruel Province
- Thrinchus flexuosus (Serville, 1838) in Fischer, 1853: 419.
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- Tmethis flexuosa (Serville, 1838) in Fieber, 1854: 201.
- Thrinchus flexuosus (Serville, 1838) in Walker, 1870: 794.
- Thrinchus perezii Bolívar, 1873: 234.
Syntypes (n= 2); male; 84a5e2ea-2295-4a9a-a374-9016de74a183; deposited at: Museo Nacional de Ciencias Naturales (MNCN); Spain: Comunidad de Madrid: Brunete, 30 km W of Madrid
- Cuculligera perezii (Bolívar, 1873) in Bolívar, 1876: 365.
- Cuculligera flexuosa (Serville, 1838) in Bolívar, 1878: 458.
- Cuculligera flexuosa (Serville, 1838) in Pantel, 1896: 95.
- Cuculligera flexuosa (Serville, 1838) in Bolívar, 1898: 25.
- Cuculligera capucina Navás, 1904: 193.
Syntype; c233d1f9-bea3-455b-b4d3-fa603af07a1f; Spain: Huesca, camino de Montearagon a la Sierra de Guara
- Cuculligera flexuosa var. azurea Navás, 1904: 195.
- Cuculligera flexuosa (Serville, 1838) in Navás, 1904: 194.
- Prionotropis flexuosa var. sulphurans Bolívar, 1921: 458.
- Cuculligera flexuosa var. azurea Navás, 1904 (subjective synonym of Eremobia flexuosa Serville, 1838) in Bolívar, 1921: 458.
- Prionotropis flexuosa var. perezi [sic] Bolívar, 1873 (misspelling of Thrinchus perezii Bolívar, 1873) in Bolívar, 1921: 458.
- Prionotropis flexuosa (Serville, 1838) in Bolívar, 1921: 455.
- Cuculligera flexuosa var. azurea Navás, 1904 (subjective synonym of Eremobia flexuosa Serville, 1838) in Uvarov, 1943: 39.
- Prionotropis flexuosa perezii (Bolívar, 1873) in Uvarov, 1943: 39.
- Prionotropis flexuosa sulphurans Bolívar, 1921 in Uvarov, 1943: 39.
- Prionotropis flexuosa flexuosa (Serville, 1838) in Uvarov, 1943: 39.
- Cuculligera capucina Navás, 1904 (subjective synonym of Eremobia flexuosa Serville, 1838) in Harz, 1975: 175.
- Prionotropis flexuosa (Serville, 1838) in Harz, 1975: 175.
- Prionotropis flexuosa perezii (Bolívar, 1873) in Harz, 1975: 175.
- Prionotropis flexuosa sulphurans Bolívar, 1921 in Harz, 1975: 175.
- Prionotropis flexuosa (Serville, 1838) in Herrera, 1982: 58.
- Prionotropis flexuosa perezii (Bolívar, 1873) in Herrera, 1982: 58.
- Prionotropis flexuosa sulphurans Bolívar, 1921 in Herrera, 1982: 58.
- Cuculligera capucina Navás, 1904 (subjective synonym of Thrinchus perezii Bolívar, 1873) in Presa & García, 1983: 27.
- Prionotropis flexuosa (Serville, 1838) in Llorente del Moral & Presa, 1983: 274.
- Prionotropis flexuosa sulphurans Bolívar, 1921 in Llorente del Moral & Presa, 1983: 277.
- Prionotropis flexuosa perezii (Bolívar, 1873) in Presa & García, 1983: 27.
- Prionotropis flexuosa sulphurans Bolívar, 1921 in Presa & García, 1983: 28.
- Prionotropis flexuosa flexuosa (Serville, 1838) in Pardo, 1995: 15.
- Prionotropis flexuosa perezii (Bolívar, 1873) in Pardo, 1995: 16.
- Cuculligera capucina Navás, 1904 (subjective synonym of Thrinchus perezii Bolívar, 1873) in Llorente del Moral & Presa, 1997: 61.
- Prionotropis flexuosa (Serville, 1838) in Llorente del Moral & Presa, 1997: 57.
- Prionotropis flexuosa perezii (Bolívar, 1873) in Llorente del Moral & Presa, 1997: 61.
- Prionotropis flexuosa sulphurans Bolívar, 1921 in Llorente del Moral & Presa, 1997: 63.
- Prionotropis flexuosa var. sulphurans Bolívar, 1921 (subjective synonym of Eremobia flexuosa Serville, 1838) in Bivar-De-Sousa, Conde & Mendes, 2008: 342.
- Thrinchus perezii Bolívar, 1873 (subjective synonym of Eremobia flexuosa Serville, 1838) in Bivar-De-Sousa, Conde & Mendes, 2008: 342.
- Prionotropis flexuosa (Serville, 1838) in Bivar-De-Sousa, Conde & Mendes, 2008: 342.
- Prionotropis flexuosa var. sulphurans Bolívar, 1921 (subjective synonym of Eremobia flexuosa Serville, 1838) in Massa, Ünal & Lo Verde, 2015: 502.
- Thrinchus perezii Bolívar, 1873 (subjective synonym of Eremobia flexuosa Serville, 1838) in Massa, Ünal & Lo Verde, 2015: 505.
- Prionotropis flexuosa (Serville, 1838) in Massa, Ünal & Lo Verde, 2015: 502.
- Prionotropis flexuosa (Serville, 1838) in Ünal, 2016: 24.
- Prionotropis flexuosa (Serville, 1838) in Olmo-Vidal, 2017: 289.