A hobgoblin is humanoid. It is an omnivore.

Hobgoblin. Used by the Puritans and in later times for wicked goblin spirits, as in Bunyan's "Hobgoblin nor foul friend", but its more correct use is for the friendly spirits of the brownie type. In "A midsummer night's dream" a fairy says to Shakespeare's Puck:
Those that Hobgoblin call you, and sweet Puck,
You do their work, and they shall have good luck:
Are you not he?

and obviously Puck would not wish to be called a hobgoblin if that was an ill-omened word.

Hobgoblins are on the whole, good-humoured and ready to be helpful, but fond of practical joking, and like most of the fairies rather nasty people to annoy. Boggarts hover on the verge of hobgoblindom. Bogles are just over the edge. One Hob mentioned by Henderson, was Hob Headless who haunted the road between Hurworth and Neasham, but could not cross the little river Kent, which flowed into the Tess. He was exorcised and laid under a large stone by the roadside for ninety-nine years and a day. If anyone was so unwary as to sit on that stone, he would be unable to quit it for ever. The ninety-nine years is nearly up, so trouble may soon be heard of on the road between Hurworth and Neasham. A Dictionary of Fairies, by Katharine Briggs