The orchid Masdevallia Ada's Delight is a hybrid registered with the Royal Horticultural Society by A.Kelly in 2000. It is originated by C.Halls
Top three species ancestors and their influences are

• Masdevallia veitchiana (37.50%)  subgenus Masdevallia  section: Masdevallia   subsection: Coccineae 
• Masdevallia coccinea (25.00%)
• Masdevallia caudata (25.00%)  subgenus Masdevallia  section: Masdevallia   subsection: Caudatae