| | | Kind of type | Full locality |
| | | holotype of species Melanoplus lakinus (Scudder, 1878) | Northwestern U.S.A., Colorado |
| | | syntype of synonym Melanoplus marculentus Scudder, 1897; lectotype of synonym Melanoplus marculentus Scudder, 1897 | Mexico Northeast, San Luis Potosí: Sierra de Miguelito |
| | | syntype of synonym Melanoplus sonorae Scudder, 1897; lectotype of synonym Melanoplus sonorae Scudder, 1897 | Mexico Northwest, Sonora |
| | | syntype of synonym Melanoplus marculentus Scudder, 1897; paralectotype of synonym Melanoplus marculentus Scudder, 1897 | Mexico Northeast, Zacatecas |
| | | syntype of synonym Melanoplus marculentus Scudder, 1897; paralectotype of synonym Melanoplus marculentus Scudder, 1897 | Mexico Northeast, Zacatecas |
| | | [not recorded as a type] | North-Central U.S.A., Oklahoma |