The two subspecies ornatus and girardi refer to the same population. When ornatus was used at the species level it was an invalid name because Coluber ornatus was already used for a completely different taxa. For more details check: Camper J D. 1996. Masticophis taeniatus. Catalogue of American Amphibians and Reptiles (639): 1-6
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.