Thank you, both!
So, just to be sure,
@tarev and
@bsharf, this doesn't look to you like rust or any other disease that could be transmitted to other plants in my house?
I don't even know if amaryllis are susceptible to rust,
but my knee-jerk fear was that the spots were rust. I don't want to preserve the rust and have it run rampant in my daylilies next spring.
(Today is such a BEAUTIFUL day! What a nice little treat to warmth the weather is giving us here.
I wish it would last...)