Stanhopea Memoria Paul Allen (S. ecornuta x S. tigrina)
A man made hybrid that looks very similar to the natural hybrid x fowlieana (S. ecornuta x costaricensis)
This grows well in Sydney. Flowering at random times throughout the year. I've got 2 clones of this (I think). 1 hasn't flowered for me yet. The plant in the picture was purchased as a deltoidea 2 or 3 year before it flowered.
The Stanhopea Guy