Heinrich Simroth was a German malacologist of some distinction. Once he published a short paper* about the larva of a coleophorid moth whose case he thought resembled the shell of a clausiliid snail.
Here are Simroth's drawings of the moth larva.
According to BugGuide, coleophorid larvae from the second instar onward carry a "portable case" around them, which they make using silk and/or plant material.
Simroth also thought that the larva's mimicry protected it from predatory birds: "I think it is clear that the whole arrangement is very effective and likely to deceive small birds frequenting the rocks for feeding upon insects."
Simroth did not identify the moth. I don't know if anything more substantial on the presumed mimicry of these moths has since been written.
*Simroth, H. 1901. Clausilia mimicked by a microlepidopteron. Journal of Malacology 8:33-34.