Name(s) in cluster
| Helophorus oblongus LeConte 1850 | urn:lsid:organismnames.com:name:540318 |
| Helophorus oblongus (Le Conte ) | urn:lsid:organismnames.com:name:2287790 |
| Helophorus oblongus Leconte in Agassiz 1850 | urn:lsid:organismnames.com:name:5058415 |
...