| Authors(s) | Soponis, A.R. |
| Year | 1977a |
| Title | A revision of the Nearctic species of Orthocladius (Orthocladius) van der Wulp (Diptera: Chironomidae). Memoirs of the entomological Society of Canada 102: 1-187. |
| Authors(s) | Soponis, A.R. |
| Year | 1977a |
| Title | A revision of the Nearctic species of Orthocladius (Orthocladius) van der Wulp (Diptera: Chironomidae). Memoirs of the entomological Society of Canada 102: 1-187. |