Foxhole Slade Caterpillars

Searching the limestone cliffs of Foxhole Slade with a headlamp about an hour before dawn on Sunday turned up a couple of caterpillars despite a temperature of about 4 degrees C.

 The coastal specialist Annulet (Charissa obscurata) nicely camouflaged on the limetone...

and the widespread and strangely named Uncertain (Hoplodrina alsines). Neither was feeding while I watched them, but they may well have done so earlier in the night before the temperature dropped.