Catasetum gnomus is accepted species in  the family Orchidaceae  subfamily: Epidendroideae, tribe: Cymbidieae, subtribe: Catasetinae,  
Genus Catasetum   subgenus Catasetum  section: Catasetum 
Infraspecific taxa recognized within Catasetum gnomus: infraspecific taxa
This species is found in S. Venezuela to Brazil.