Bees seem stuck together

[silentscyther]

Hi
Can someone please tell me what is going on here: just inspected National Hive and on moving frames sideways on pretty well every frame some of the bees seem joined by “spiders web” like threads. Could this be moth related?

 

[Murox]

Festooning - hanging in chains , making comb, repairing comb, just building.

 

[enrico]

The most natural and amazing spectacle as they build their comb out. I was told it helps them to gain the right shape !!

 

[Amaranth]

There are no threads there - they simply hook on to one another with their legs. Perfectly normal festooning.