There is no specific term used to describe a group of panthers, likely as a result of the solitary behavior that the animal exhibits. The word "panther" is used as a general reference to the black cats belonging to the Panthera genus. It is not a distinct species.
The black fur found on panthers is caused by melanism, a development of melanin in the skin or its appendages. The species of a black panther is easily determined by its location. Those found in Asia and Africa are leopards, while those found in the Americas are jaguars. Panthers are nocturnal and spend the majority of their days in trees.