Following my blog earlier this month about Fire salamander larvae, I returned on the 23rd, wondering if I could spot any different salamander or newt species.
After waiting for some time, I only saw two larvae that had legs, both of which were the Fire species. But while scanning the pool bed, something else caught my eye: a moving twig construction vaguely reminiscent of hermit crabs, but more closely resembling the bagworm moth caterpillars I blogged about in October 2016.
It was of course a caddisfly larva. I understand this is a sign that the water is unpolluted - something I'd expect here, to be honest.
It was only on playing the clip back that I noticed another caddisfly larva, below right, heaving its log-like house all over the place - and there appears to be at least one more moving around in dead leaves, above left! The naked eye simply misses all of this activity.