A creature burrowing into hard cement. June 2010.

Four images showing what looks like a small Wasp burrowing into the concrete skull.

A creature burrowing into hard cement. June 2010.

close up of hole.

A creature burrowing into hard cement. June 2010.

The Wasp.

A creature burrowing into hard cement. June 2010.

Sealing it up.

A creature burrowing into hard cement. June 2010.

Back garden.