Most authors treat them as synonyms, at least based on morphology. Current sequence data labeled as erminea and alba cover at least two separate taxa. But, in the absence of epitypification these older names cannot be pinned down with any degree of certainty. I would support their synonymy. The caveat is that many of these names actually incorporate unrecognised species complexes .
Most authors treat them as synonyms, at least based on morphology. Current sequence data labeled as erminea and alba cover at least two separate taxa. But, in the absence of epitypification these older names cannot be pinned down with any degree of certainty. I would support their synonymy. The caveat is that many of these names actually incorporate unrecognised species complexes .