It means he looks like a flytrap. False flytrap. It is the name of a genus of birds in the family Tyrannidae. We know them as tyrants, pygmy flycatchers, small tyrants or dwarf flycatchers.
Pseudotriccus : Genus of passerine birds of the family of tyrannids that dwell in the Neotropics and are known as tyrannies, dwarf tyrants or pygmy flycatchers.