It's from childrens stories we were read when younger..
I only remember parts but, The Lady bug was:
"Lady bug Lady bug fly away home, your house is on fire and your children are alone.." (Of course we are going to feel sorry for the Lady Bug)
And regarding the spider, well look how they were .mean to children:
"Little Miss Muffet, sat on a tuffet, eating her curds and whey, when along came a spider and sat down beside her and frightened miss Muffet away!"
Spiders were scary..
Snoozy