Myrmyxicus

Demon
Characteristics
Alignment	Chaotic Evil
Type	Outsider (Fiend)
Image	Wizards.com image
Publication history
Mythological origins	Demon

In the Dungeons & Dragons fantasy role-playing game, demons are the most widespread race of fiends. The demons are chaotic evil by nature, and are native to the Abyss. Demons have no true rulers, though powerful demon lords are able to gain enough power and influence to gain control over sizable armies of demonic creatures.

Demons were among the earliest creatures introduced in the D&D game.

Demons were among the first monsters introduced in the earliest edition of the game, in the Eldritch Wizardry supplement (1976). This booklet introduced the type I demon, the type II demon, the type III demon, the type IV demon, the succubus, the type V demon, and the type VI demon, as well as two of their lords, Orcus and Demogorgon.

Demons appear in the first edition Monster Manual (1977), which includes the manes (sub-demon), the succubus, the type I demon (vrock), the type II demon (hezrou), the type III demon (glabrezu), the type IV demon (nalfeshnee, etc.), the type V demon (marilith, etc.), the type VI demon (balor, etc.), and demon lords Demogorgon (Prince of Demons), Juiblex (The Faceless Lord), Orcus (Prince of the Undead), and Yeenoghu (Demon Lord of Gnolls). The quasit, a frequent servant of demons, also first appeared in the original Monster Manual.

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Wikipedia