Insect damage?
Could it be grasshopper or cricket damage? I note some small divots eaten into the sides of the leaves, and some grasshoppers will 'shear' plant tissue off, somewhat like what is on the pseudobulb. The little verticle scallops look so much like a leaf chewing insect. Have you tried setting it on a sticky trap also, then any bug that walks across it, may give you a sample of what is "visiting' your plant!
Steve
Last edited by Stray59; 12-09-2012 at 09:01 PM..
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