Cimex rubens Fabricius, 1794 is a junior primary homonym of C. rubens Harris, 1780 which is a junior synonym of Deraeocoris ruber Linnaeus, 1758. Since both names were not used in one genus after 1899, the case refers to ICZN Art. 23.9.5 and P. rubens is the valid name and has precedence over P. alternatum (Lepeletier & Serville, 1828) [Aukema & Rieger 2006]
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.
