Arachnophobia

When I was a very young but precocious reader, I found a story in one of my mother's magazines that scared and thrilled me.  A mother was putting her baby daughter to sleep, singing softly and watching over her.  In a hidden corner of the same room, a mother spider was watching over her baby spiders, doing whatever maternal things arachnids do.  I think the point of the story must have had something to do with mothers of different species taking care of their young; however, I of course completely missed the maternal metaphor.  I KNEW that after the story ended and the human mother had left the room, the vicious spider would creep over to the human baby and bite her to death.  Don't have much love for spiders...