Yes. They look so close to Zephyranthes. But i still confuse about the stamen. It looks longer than common rain lily. And that pinkish colors. Maybe a hybrid ?
Searching on internet, i think the closest species with that long stamen is Zephyranthes atamasca.
Just to make sure, Dawne, can you tell us how tall the plant is ? Flower size ? Is the flower come singly on each scape or some flower together at single scape ?
I am sorry to make you all confuse too...