On a related Christmas tree subject. Our tree turned out to be infested with giant conifer aphids - we only realised when we saw them crawling along the skirting board and then found they were in the carpet, curtains, among the CDs... Apparently they have become well established in cultivated Christmas tree plantations. Once the tree starts to run out of food for them, they go off exploring. They will probably just die off in your home unless you have some other coniferous plant for them to eat, but you will have been freaked out before then by the long lines of them fanning out across your living room.

Needless to say, within an hour of identifying the source, the tree was outside the house. They attack the bark of the tree and produce a sticky residue so you might need to clean your decorations if you have had these uninvited guests.

https://www.whatsthatbug.com/2017/04/30/...t-britain/