Greek, hypo = under + Greek, stoma = mouth. The specific epithet, sertanejo, is derived from the Portuguese word for a person from
the sertão. Sertão refers to the inland xerophitic region of north-eastern Brazil that is
isolated from urban centres and associated with the Caatinga and the Cerrado biomes.
Sertanejos are known to be shy and elusive as well as rustic and resilient.