The record derives from WCSP (data supplied on 2012-03-23) which reports it as a synonym (record 276410) with original publication details: Amaryllidaceae 179 1837
http://www.theplantlist.org/tpl1.1/record/kew-276410 (Link)
Unintended disagreements occur when a parent (B) is
thinned by swapping a child (E) to another part of the
taxonomic tree, resulting in existing IDs of the parent being interpreted
as disagreements with existing IDs of the swapped child.
Identification
ID 2 of taxon E will be an unintended disagreement with ID 1 of taxon B after the taxon swap
If thinning a parent results in more than 10 unintended disagreements, you
should split the parent after swapping the child to replace existing IDs
of the parent (B) with IDs that don't disagree.
Zephyranthes is the parent genus for Cooperia and Cooperia taxa have been put in Zephryanthes.