Oncidium similiar to maculatum but teeny flowers?

[greengarden]

I got this a few years ago as a supposed seedling of Oncidium incurvum which it most definately isn't so I'm guessing it has been mislabled. Anyone able to shed any light on what it is? The flowers are very similar looking to O. maculatum but the info i have says maculatum flowers are 5cm wide and these would be lucky to be 2cm.

I'm sorry it's not the best photo and the flower isn't fully open, the kids nicked my camera and stuffed it so it's the best I could do tonight...

[WhiteRabbit]

good luck!