[Frdemetr]

Shadow,
Yes, 'scratch' the flower, like a bee does! Use the finger nails to scratch the lip and the column, when the Euglossinae bees settle. More over to scratch, its usefull to remove the pollinias also. The flower 'thinks' the self-pollination bacomes impossible and then 'opens' the stigma (more or less one day after)! Stan are smart flowers!