- Pezotettix unicolor Thomas, 1873: 151-152.
Holotype; female; 84bc98c1-8624-4a60-9071-1efbc1cf15f4; deposited at: National Museum of Natural History, Smithsonian Institution (USNM); United States: Illinois
- Pezotettix scudderi Uhler, 1864 in Beutenmüller, 1894: 309.
- Pezotettix unicolor Thomas, 1873 (synonym of Pezotettix scudderi Uhler, 1864) in Scudder, 1897: 212.
- Melanoplus scudderi (Uhler, 1864) in Scudder, 1897: 212.
- Melanoplus scudderi (Uhler, 1864) in Morse, 1904: 45.
- Melanoplus scudderi (Uhler, 1864) in Rehn & Hebard, 1905: 790.
- Melanoplus scudderi scudderi (Uhler, 1864) in Hart, 1906: 158.
- Melanoplus scudderi (Uhler, 1864) in Rehn & Hebard, 1911: 633.
- Melanoplus scudderi (Uhler, 1864) in Morse, 1920: 520.
- Melanoplus scudderi (Uhler, 1864) in Blatchley, 1920: 394.
- Melanoplus scudderi scudderi (Uhler, 1864) in Hubbell & Ortenburger, 1926: 176.
- Melanoplus scudderi scudderi (Uhler, 1864) in Hebard, 1934: 194.
- Melanoplus scudderi scudderi (Uhler, 1864) in Vickery & Kevan, 1986: 380.
- Pezotettix unicolor Thomas, 1873 (synonym of Pezotettix scudderi Uhler, 1864) in Otte, 1995: 394.
- Melanoplus scudderi (Uhler, 1864) in Capinera, Scherer & Squitier, 2001: 111.
- Melanoplus scudderi scudderi (Uhler, 1864) in Bland, 2003: 100.
- Melanoplus scudderi (Uhler, 1864) in Capinera, Scott & Walker, 2004: 138, Plate 29.
- Melanoplus scudderi scudderi (Uhler, 1864) in Kirk & Bomar, 2005: 89.
- Pezotettix unicolor Thomas, 1873 (synonym of Pezotettix scudderi Uhler, 1864) in Hill, 2015: 267.
- Melanoplus scudderi (Uhler, 1864) in Hill, 2015: 267.