This flower, which we call a spider lily, was given to us by my mother-in-law. She, apparently, got it from someone who was unsure of its name but called it a spider lily as well. Each year, the buds sprout along our front walkway. In a matter of days, they compliment the blooming variegated liriope.
The scientific name is Lycoris radiata and is also know an Higanbana in Japanese. A discussion of this flower can be found at this site.
This is the photo I took last year around Sept. 15th after a rain.
Morning Update: We watched a hummingbird sample the flowers from the sidelights of our front door. I captured this photo. It is quite grainy as I don't have a high-powered telephoto lens. I might have to invest in one.