I have a tibicinis .. I will post links to past threads on Schomburgkia as you wait for others to respond.
Looking forSchomburgkia Info
http://www.orchidboard.com/community...ple-glory.html
Question for Dorothy
Tibicinis and thomasoniana are both of the subgen Chaunoschomburgkia explained here -
http://www.orchidboard.com/community...ed-yellow.html
These schomburgkia are now classified as Myrmecophilia as per IOSPE -
Jay's Internet Orchid Species Photo Encyclopedia - Me - Ny
"These species were listed in Schomburgkia but have been moved to the new genus Myrmecophilia which means ant bearing, and as the name implies they have psuedobulbs that are naturally hollow to accommodate an ant colony who keep the long growing, long spiking inflorescence and buds safe from predators such as thrips, who would suck the buds dry in a second."