How does an orchid ophrys ensures its pollination by bees?

Explanation

Mimicry: It is a phenomenon in which living organism modifies its form, appearance, structure or behavior and looks like another living organism as a self defence and increases the chance of their survival. Floral mimicry is for usually inviting pollinators. Mimicry is a type of interspecific interaction.
Example:
The plant, Ophrys an orchid, the flower looks like a female bee to attract the male bee. The flower is pollinated by the male bee. It is otherwise called 'floral mimicry '.