A fallacy of illicit transference is an informal fallacy occurring when an argument assumes there is no difference between a term in the distributive (referring to every member of a class) and collective (referring to the class itself as a whole) sense.
There are two variations of this fallacy:
While fallacious, arguments that make these assumptions may be persuasive because of the representativeness heuristic.
References
Fallacies of illicit transference Wikipedia(Text) CC BY-SA