On the way there three mines and oval cut-outs of Phylloporia bistrigella were found on Silver Birch....No. 500 for me in Calderdale :-)
Another new species for me in Calderdale was this Fox Moth larva munching on Heather on the moor. A second was seen close by.
A couple of you may be interested that when I was browsing the YNU report for 2016 I noticed that the bagworms found at Stainland last year have been promoted to the first and only record for Yorkshire. The single, previous record is unsubstantiated :-)