| | | Kind of type | Full locality |
| | | unspecified primary type of synonym Marellia paranensis Liebermann, 1932 | Southern South America, Argentina Northeast, Entre Rios: Rio Parana |
| | | syntype of synonym Waehneriella paludicola Günther, 1940 | Brazil North, Amazonas: Brazil-Peru boundary, Río Yavarí confluence |
| | | syntype of synonym Waehneriella paludicola Günther, 1940 | Brazil North, Amazonas: Brazil-Peru boundary, Río Yavarí confluence |
| | | syntype of synonym Waehneriella paludicola Günther, 1940 | Brazil North, Amazonas: Brazil-Peru boundary, Río Yavarí confluence |
| | | [not recorded as a type] | Southern South America, Argentina Northeast, Entre Rios: Paraná |
| | | holotype of synonym Marellia clearei Uvarov, 1930 | Northern South America, Guyana: N.W. District, Barbara Rest House |
| | | holotype of species Marellia remipes Uvarov, 1929 | Southern South America, Argentina Northeast, Entre Rios: Paraná |
| | | holotype of synonym Marellia geyskesia Willemse, 1948 | Northern South America, Surinam: Paramaribo |
| | | holotype of synonym Marellia gemignanii Liebermann, 1932 | unknown |
| | | [not recorded as a type] | Western South America, Colombia, Meta: Puerto Lopez |
| | | [not recorded as a type] | Southern South America, Argentina Northeast, Corrientes |
| | | [not recorded as a type] | Southern South America, Argentina Northeast, Formosa |
| | | [not recorded as a type] | Southern South America, Argentina Northeast, Santa Fé |
| | | [not recorded as a type] | Southern South America, Uruguay |