Mark Sturtevant wrote:
I don't know of any case bearer moth larvae that make their homes out of their poo, but maybe there are some. There are beetle larvae that do this, but I don't see a match to this one. in any case it may have pupated inside, and if you keep it to see what emerges, then we would know.
Coleóphora malivorélla is one, but the case is wrong. This one looks like M. seratélla.
C. m. is the 'Pistol Case Bearer. C.s. is the Cigar Casebearer.