I'm looking for studies that have used large amounts of genomic data to separate and delimit likely cryptic species. I would love to hear from anyone who has done this or is familiar with the literature.
I don't have experience in cryptic species, but separate species can share large regions of genetic code, for example, colour patterning in butterflies. Conversely, almost all of the DNA letters that separate species may be found on a tiny portion of a single chromosome, for example in crow species. So you may not need large amounts of genomic data :-)