Last Sunday I was out on a fungi foray with the Halifax Scientific Society - it was national fungi day. We walked from Shaw park at Holywell Green and along Holywell Brook with a drystone wall boundary along much of the path. A casual glance at the wall revealed a bagworm case which I was confident was Lichen Case-bearer as it's around 300 yards from the colony discovered in spring. Straight away other (non moth-ing) members of the group located more cases - they were easy to find! I took two cases home and was surprised to find they contained what appeared to be fully grown larvae.
It must be a widespread and common species in the Holywell Green area and deserves further study of its distribution.