It's apparently a waxy secretion to camouflage themselves.
According to the comments section, anyway.
(FeralCatManLong ads need comments sections, Thu 16 Apr 2026, 0:23,
Reply)
There’s one that doesn’t discard all of its exoskeleton when it moults.
It keeps the head, so it looks like it’s crawling around wearing a stack of hats.
(jonbobloves you, Mon 20 Apr 2026, 20:53,
Reply)
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