| Referência nro. | Scott, W.B. and E.J. Crossman, 1973 |
| Ecossistema | Salish Sea |
| Status | native |
| Abundância | common (usually seen) |
| Fase de vida | adults |
| Base de dados regional | |
| Notas | From CA-BC. Occurs in Stikine, Taku (Ref. 10882), Nass, Skeena, Dean, Thompson (Ref. 10882), Fraser and Peace River systems. Also recorded from rivers in Queen Charlotte and Vancouver Islands and below the barriers of the Columbia River drainage (Ref. 10 |