Hello /an/,

Recently quite a lot of ants have been getting into my house.

Their head has the reddish shade in the picture but the rest of the body is black like the common ant.

They also vary a LOT in size, I've just seen one that was at least three times bigger than the others (I'm pretty sure it was still a worker).

What kind of ants are they? Can they damage eletronics?

Thanks to anyone who responds