The orchid Phalaenopsis David Ai is a hybrid registered with the Royal Horticultural Society by I.Dobkin in 1977.
Top three species ancestors and their influences are

• Phalaenopsis gigantea (50.00%)  subgenus Polychilos  section: Amboinenses 
• Phalaenopsis sumatrana (50.00%)  subgenus Polychilos  section: Zebrinae