It seems like it’s reproductive period for cellar spiders: yesterday I found two mama spiders on the ceiling in my house in the countryside, each holding a ball of eggs. Very fascinating. I took these close pictures that came out very good.
Today, the situation for the first spider (yellow background) is the same, she’s still up there holding her eggs. The other one instead has released her offspring during the night, and now the baby spiders are all around in a small constellation.