| Date | Site | OS Grid Ref | Stage | Quantity | Comment |
|---|---|---|---|---|---|
| 1940 | Altrincham | SJ7687 | Not recorded | 1+ | undated, grid reference not given, Mansbridge (1940) |
| 1940 | Delamere Forest | SJ5570 | Not recorded | 1+ | undated, grid reference not given, county status A common pest on wool and fur but not often recorded, Mansbridge (1940) |
| 1921 | Frandley House, Frandley | SJ640788 | Adult | 1 | Boyd (1951) |
| 1905 | Delamere | SJ5570 | Adult | 1 | grid reference not provided |
| 04 Jun 1904 | Delamere | SJ5570 | Adult | 2 | from dried carcases on a barn door, LCES 29:17, grid reference not provided |
| 1898 | Chester | SJ4066 | Adult | 1 | grid reference unknown |
| 1854 | Cheshire | Unknown | Not recorded | 1+ | grid reference and date unknown. Common. Byerley (1854) |