What family does it belongs to?

[Danie]

This may appear as a silly question to all of you experts
What family does "Peristeria Elata" belongs to?
I just received one in the mail and I am very nervous that I may kill it
I just could not resist this plant! Just couldn't....Just couldn't!
This may have been a mistake since I am a novice at growing orchids. Oh, help, help,help.........
All I know is:
full sun in winter
lots of water during summer
intermediate light in summer?

Please, share your knowledge with little me
Thank you all...