The orchid Laeliocattleya Rubescent Atreus is a hybrid registered with the Royal Horticultural Society by H.Kubo in 1970.
Top three species ancestors and their influences are

• Laelia rubescens (50.00%)  subgenus Laelia  section: Podolaelia 
• Cattleya lawrenceana (25.00%)  subgenus Cattleya  section: Cattleya   series: Lawrenceanae 
• Cattleya coccinea (25.00%)  series: Sophronitis