| | | Kind of type | Full locality |
| | | syntype of species Melanoplus arizonae Scudder, 1878 | Southwestern U.S.A., Arizona |
| | | [not recorded as a type] | Mexico Northeast, Coahuila |
| | | [not recorded as a type] | South-Central U.S.A., Texas, Potter County: Amarillo |
| | | [not recorded as a type] | South-Central U.S.A., Texas, Hardeman County: Quanah |
| | | unspecified primary type of synonym Melanoplus palmeri Scudder, 1897; lectotype of synonym Melanoplus palmeri Scudder, 1897 | Southwestern U.S.A., Arizona, Yavapai County: Fort Whipple |
| | | unspecified primary type of synonym Melanoplus sanguineus Bruner, 1904; lectotype of synonym Melanoplus sanguineus Bruner, 1904 | Northwestern U.S.A., Colorado, Prowers County: Lamar |
| | | holotype of synonym Melanoplus scitus Scudder, 1902 | Central America, Guatemala: La Trementia |
| | | [not recorded as a type] | North-Central U.S.A., Oklahoma |