| Type | Article |
| Authors(s) | Andersen, N.M. |
| Year | 1980 |
| Title | Hygropetric water striders of the genus Onychotrechus Kirkaldy with description of a related genus (Insecta, Hemiptera, Gerridae) |
| Volume | 6 |
| Page(s) | 113-146 |
| Published in/Publisher | Steenstrupia |
| Type | Article |
| Authors(s) | Andersen, N.M. |
| Year | 1980 |
| Title | Hygropetric water striders of the genus Onychotrechus Kirkaldy with description of a related genus (Insecta, Hemiptera, Gerridae) |
| Volume | 6 |
| Page(s) | 113-146 |
| Published in/Publisher | Steenstrupia |