- Trimerotropis gracilis (Thomas, 1872) in Saussure, 1884
- Conozoa gracilis (Thomas, 1872) in Bruner, 1893: 19.
- Derotmema lentiginosum Scudder, 1900: 393.
- Derotmema lichenosum Scudder, 1900: 394.
- Hadrotettix gracilis (Thomas, 1872) in Scudder, 1900: 67.
- Trimerotropis sordida Walker, 1902: 9.
Syntype; female; e87f499a-37dc-46d2-bea1-2fa56706b890; deposited at: Royal Ontario Museum - Entomology (ROME); Canada: Saskatchewan: Assiniboia, Waldeck
- Trimerotropis gracilis (Thomas, 1872) in Caudell, 1903: 792.
- Trimerotropis sordida Walker, 1902 in Walker, 1906: 57.
- Trimerotropis gracilis (Thomas, 1872) in Rehn & Hebard, 1906: 385.
- Derotmema lentiginosum Scudder, 1900 (synonym of Oedipoda gracilis Thomas, 1872) in Caudell, 1909: 113.
- Pseudotrimerotropis sordida (Walker, 1902) in Kirby, 1910: 259.
- Tmetodera lentiginosum (Scudder, 1900) in Kirby, 1910: 244.
- Derotmema lentiginosum Scudder, 1900 in Rehn & Hebard, 1912: 96.
- Derotmema lichenosum Scudder, 1900 in Rehn & Hebard, 1912: 96.
- Trimerotropis gracilis (Thomas, 1872) in Henderson, 1924: 82.
- Trimerotropis gracilis (Thomas, 1872) in Buckell, 1924: 8.
- Trimerotropis gracilis (Thomas, 1872) in Hebard, 1927: 6.
- Derotmema lentiginosum Scudder, 1900 (synonym of Oedipoda gracilis Thomas, 1872) in Hebard, 1928: 211.
- Derotmema lichenosum Scudder, 1900 (synonym of Oedipoda gracilis Thomas, 1872) in Hebard, 1928: 211.
- Trimerotropis gracilis gracilis (Thomas, 1872) in Hebard, 1928: 211.
- Trimerotropis gracilis gracilis (Thomas, 1872) in Hebard, 1929: 351.
- Trimerotropis gracilis gracilis (Thomas, 1872) in Strohecker, Middlekauff & Rentz, 1968: 118.
- Trimerotropis gracilis (Thomas, 1872) in Otte, 1970: 62.
- Derotmema lentiginosum Scudder, 1900 (synonym of Oedipoda gracilis Thomas, 1872) in Otte, 1984: 332.
- Derotmema lichenosum Scudder, 1900 (synonym of Oedipoda gracilis Thomas, 1872) in Otte, 1984: 333.
- Trimerotropis sordida Walker, 1902 (synonym of Oedipoda gracilis Thomas, 1872) in Otte, 1984: 333.
- Trimerotropis gracilis (Thomas, 1872) in Otte, 1984: 232, 332.
- Trimerotropis sordida Walker, 1902 in Vickery & Kevan, 1986: 511.
- Trimerotropis gracilis (Thomas, 1872) in Vickery & Kevan, 1986: 507.