| | | | Kind of type | Full locality |
| | | | unspecified primary type of synonym Melanoplus extremus scandens Scudder, 1897 | Northeastern U.S.A., New Hampshire: White Mountains |
| | | | syntype of synonym Pezotettix septentrionalis Saussure, 1861; lectotype of synonym Pezotettix septentrionalis Saussure, 1861 | Eastern Canada, Labrador |
| | | | [not recorded as a type] | Northeastern U.S.A., Indiana, Marshall County |
| | | | [not recorded as a type] | North-Central U.S.A., Minnesota, St Louis County: Eagles Nest, Eagles Nest Lake |
| | | | [not recorded as a type] | North-Central U.S.A., Illinois, Mason County: Sand Ridge State Forest , Sand Ridge State Forest |
| | | | [not recorded as a type] | Northeastern U.S.A., Vermont, Orleans County: Jay |
| | | | [not recorded as a type] | Northeastern U.S.A., Massachusetts, Berkshire County: Adams, Greylock Mountain |
| | | | [not recorded as a type] | Northeastern U.S.A., Maine, Penobscot County: Orono |
| | | | [not recorded as a type] | Southwestern U.S.A., California, Tulare County: Tulare |
| | | | [not recorded as a type] | Northeastern U.S.A., Massachusetts, Worcester County: Winchendon |
| | | | [not recorded as a type] | Northeastern U.S.A., Vermont, Franklin County: Montgomery |
| | | | syntype of species Melanoplus borealis (Fieber, 1853); lectotype of species Melanoplus borealis (Fieber, 1853) | Subarctic America, Greenland |
| | | | syntype of synonym Caloptenus extremus Walker, 1870; lectotype of synonym Caloptenus extremus Walker, 1870 | Arctic America |
| | | | holotype of synonym Melanoplus gordonae Vickery, 1969 | Subarctic America, Alaska, Fairbanks: along Gilmore Trail |
| | | | syntype of synonym Melanoplus monticola Scudder, 1897; lectotype of synonym Melanoplus monticola Scudder, 1897 | Northwestern U.S.A., Colorado: Sierra Blanca |
| | | | holotype of synonym Melanoplus borealis palaceus Fulton, 1930 | Northwestern U.S.A., Oregon: Marsh, Upper Klamath |
| | | | syntype of synonym Pezotettix junius Dodge, 1876; lectotype of synonym Pezotettix junius Dodge, 1876 | North-Central U.S.A., Nebraska, Dodge County: Glencoe |
| | | | syntype of synonym Caloptenus parvus Provancher, 1876; lectotype of synonym Caloptenus parvus Provancher, 1876 | Eastern Canada, Québec: Cap Rouge |
