I just ordered a Restrepia angustilabia from Andy's orchids and I'm having trouble finding species specific information anywhere online.
The only information I could find about this species is that it is also a synonym for R. trichoglossa. However, R. trichoglossa is listed as a separate species on Andy's Orchids.
Andy is very helpful and knowledgable. I'm sure he can help you out with any cultural information you may need for the plant. He might even be able to point you in the right direction for more info on this species.
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"We must not look at goblin men,
We must not buy their fruits:
Who knows upon what soil they fed
Their hungry thirsty roots?"
I have Restrepia brachypus and grow it in a east facing window. It is potted in moss and growing well, even blooming. I originally thought I would add it to my tabletop greenhouse but it has done so well, I've left it in the window. It is sitting in a humidity tray and has beautiful bright green moss growing on the top. I've only had this plant a few months but it has done well for me and I believe they are similar.
There is a member here that grows several Restrepia in her windows, hopefully she will add her advice. I agree with Tindomul, contact Andy with any questions or concerns anytime.