Sophronitis miniata also know as Sophronitis riograndense as far as I understood.
There are several brasilian sites with it for sale. It a recent discovered species.
Some cultural info
here but in brasilian portuguese.
From Google translator:
Feature: Cattleya miniata Orchid
Author - Source: Team Floresbella
Sophronitis are small and delicate plants. Enchanted by the charm and delicacy.
It is a species recently discovered by Nagase in São José dos Ausentes in Rio Grande Do Sul, elevated on the border with São Joaquim in Santa Catarina in Brazil. They grow clinging to highland forest trees at 1000m altitude.
Cultivation, planting and care with the Cattleya miniata Orchid
They are the easiest to care for, they are plants that need to have their roots exposed, so the ideal is to keep them in bark of rough or porous woods never resinous (eucalyptus, rubber), these burn the roots with the expelled resin, but later fully dried and a boil can also be used.
Tie them in wooden bark (peroba, vellózia, even those from the trees felled on the streets by the city halls) without forgetting to fill the sides with sphagnum.
This tactic helps to keep the plant moist for a longer time allowing the emission of roots more easily to get into the cracks in the rough bark and hang your plant at 1.5 m or more in a place that does not have strong sun, but with good air circulation.
Another great way out is to keep it on a clay stick and keep track of how many times a month it should be filled, depending on the species.
Place a porous substrate in the pot, such as perlite, for example, and keep the dish always full of water (so that the plant is always moist). Perlite is a substrate that does not deteriorate, absorbs a lot of moisture, but prevents the plant from coming into direct contact with water, preventing the roots from becoming soaked and rotting.
In a short time he will create a green moss that lives in symbiosis with plants, the stone that was once white will gradually become greener.
Ideal climate for the Cattleya miniata Orchid
They need good humidity, a good circulation of air is necessary so that they stay away from fungi, bacteria and other pests that appear whenever the circulation becomes scarce, I use a fan in sunlight.
Ideal brightness for the Cattleya miniata Orchid
it does not tolerate places that are not well shaded (50 to 70%), it is good to keep it on a clay stick and never let it empty, it is the one that most needs moisture.
How to Water the Cattleya miniata Orchid
They are plants that need a lot of humidity, good air circulation, temperatures ranging from mild to cold, each in its own way.
They manage to survive in a soaked environment, but that in this way only guarantee the survival of the plant, not the flowering. There is no problem if the greenhouses are well shaded, even during 15 days without watering.