A Bug's Life

In architecture, a feature of a building that reproduces something that used to be an essential design point, that may even have been in a completely different material, is called a skiamorph ("shadow shape"). The marble lintels of Greek temples have fake pegs carved in them, to look like the wooden beams of their predecessors. For years motor yachts had bowsprits with no sails to tie to them, just because a ship should have a pointy bit on the end.

This sounds like an extreme skiamorph.