Bee or Wasp Nest? No! Bee (Wax) Moth

Bee or Wasp Nest? No!  Bee (Wax) Moth

Observation - Bee or Wasp Nest? No! Bee (Wax) Moth - UK and Ireland. Description: This nest was firmly attached to the underside of a ridged tile which had been lying on the soil, under a wooden box. The cells are irregular & I'm guessing that they are one of the bees or wasps. Any information would be appreciated. The nest is sof

This nest was firmly attached to the underside of a ridged tile which had been lying on the soil, under a wooden box. The cells are irregular & I'm guessing that they are one of the bees or wasps. Any information would be appreciated.

The nest is soft & somewhat pliable & extremely strong, sharp scissors being necessary to cut open the cells. Inside the cells are the pupal case, some very small dark frass-like particles & sometimes tiny white crystals. The nest was empty in mid-summer but was not necessarily of this year.