April challenge (Abandoned)

[Chris Sawyer]

I geddit now...

https://en.wiktionary.org/wiki/exuvia

01/12/2020 · exuvia (plural exuviae) (biology) The remains of the exoskeleton after any member of the Arthropoda, such as an insect, crustacean or arachnid has sloughed, discarding its old integument and developing the new one.

[Keith Woonton]

Yes Chris, that was my connection, the Cicada had abandoned its exoskeleton to adopt its adult form leaving the exuiva for me to find.

[Ian Stedman]

A bit late but saw this the other day whilst travelling.

The abandoned platforms 2 & 3 at New Malden Station. The concrete tower blocks are not abandoned, I work in the one on the right!