| | | Kind of type | Full locality |
| | | holotype of synonym Gastrimargus crassipes Sjöstedt, 1928 | Southern Africa, Cape Province, Eastern Cape Province: Grahamstown |
| | | holotype of species Gastrimargus crassicollis (Saussure, 1888) | Southern Africa, Cape Province, Western Cape Province: Cape of Good Hope |
| | | holotype of synonym Gastrimargus clepsydrae Sjöstedt, 1928 | Southern Africa, Transvaal, Gauteng: Johannesburg |
| | | paratype of synonym Gastrimargus transvaalensis Sjöstedt, 1928 | Southern Africa, Transvaal, Gauteng: Johannesburg |
| | | holotype of synonym Gastrimargus grossiceps Sjöstedt, 1932 | Malesia, Sumatera |
| | | holotype of synonym Gastrimargus transvaalensis Sjöstedt, 1928 | Southern Africa, Transvaal |
| | | paratype of synonym Gastrimargus grossiceps Sjöstedt, 1932 | Malesia, Sumatera |