It is a Latin term used as an epithet of scientific name of plant or animal and that means of Riobamba, native of Riobamba, endemic to this region in Ecuador or dedicated to Riobamba.
It may be a mistake for the town of Riobamba, but it is more likely that it is trolled by the feminine of its Riobambeño gentilicio.
RIOBAMBEA error by RIOBAMBA , city of Ecuador