The 2016 paper says"a well-supported South American clade with M. roboratus, M. watsonii, and M. atricapilla (Fig. 1), and an undescribed Megascops species from a population from the Santa Marta Mountains".
Molecular systematics of the new world screech-owls (Megascops: Aves, Strigidae): biogeographic and taxonomic implications.
SACC: This is a distinctive species, sister, surprisingly, to a clade containing M. roboratus, M. watsonii, and M. atricapilla (even though the new species seems closer to the M. guatemalae group in voice and morphology!).