Species: melynx
Source: http://monsterhunter.wikia.com/wiki/Melynx
Melynx are cat-like humanoids of the Lynian race, noted for their black fur and the ability to talk in human language, as well as do human activities like their fellow Lynian subspecies called the felyne and grimalkyne. They are found both in human villages (such as Pokke Village) working for their human masters and living in the wild with their fellow Lynians.
Melynx in human villages sometimes take job opportunities, mostly as Felyne Chefs and/or Felyne Comrades. Felyne Chefs cook food for their customer to support them in their adventures by temporarily enhancing their abilities. Felyne Comrades assist their masters throughout quests with skills to make hunting easier and gather more items than usual.
Wild Melynx appear in groups and, when they spot a hunter in their area, they attempt to steal items. Once they obtain an item, they run away and dig underground, never to be encountered again. The stolen items do mysteriously appear in a "base" that will appear in different places in each area. (3rd gen and on)
They live in harmony with the lighter-toned species of Lynian, the Felynes. The Melynx and Felynes seem to be hostile towards the other Lynian Species, the Shakalaka, as they are never seen living in the same area together, though all three species live in the same environments.
See also
This tag implicates felid, lynian (learn more).