Common Marbled Carpet (Chloroclysta truncata)

Common Marbled Carpet (Chloroclysta truncata)

Observation - Common Marbled Carpet (Chloroclysta truncata) - UK and Ireland. Description: Came to light left on overnight. I'm not at all sure about this ID - it doesn't seem to cleanly match anything in Waring and Townsend. The general shape of the cross-bar and the variability of this species seem to make it a possibility. 4mm grid. Edit: C

Came to light left on overnight. I'm not at all sure about this ID - it doesn't seem to cleanly match anything in Waring and Townsend. The general shape of the cross-bar and the variability of this species seem to make it a possibility. 4mm grid.
Edit: Changed to match DD's ID: many thanks. Grid size added.