Elf

"Elf" is a term used to refer to any largely humanoid fairy. Elves should not be thought of like the Tolkienesque elves of modern fantasy literature, however--elves that could easily pass for human other than pointy ears or such are relatively rare compared to creatures like Dryads, Merrows, Satyrs, Trolls, Ogres, or the like. Dwarves are another type of elf, though like the Tolkienesque elves, Tolkienesque Dwarves are much rarer than creatures like Gnomes, Leprechauns, Pixies, Brownies, Hobs, and Goblins.

Elfin Hybrids
While all full Fairies are female, they are capable of breeding with mundane creatures, and the offspring of these unions might be either sex. Generally these offspring will be mostly human with only a few traits of their elfin parents, occasionally one or two will be born who take after their elfin parent. There's no real legal distinction made for these hybrids--for the purposes of citizenship they are considered naturally born humans, even if they are otherwise indistinguishable from an elf, and are held to the same standards of behavior that a human would be. The term "half-elf" is not well-received and can even be considered derogatory. Generally a child of such a union will think of themselves as either an elf or a human, with acknowledgement that they have ancestors who were not.

Over the course of many generations, this has lead to a fairly sizable population of male elves in the City of the Fireflies, though all such individuals are at least partially human. This presents limitations in their power, but also stabilizes their personalities--even those who take most after their elfin parent will be fully capable of human social skills, empathy, and of understanding human logic, which can not be relied upon for even the most humane of full blooded fairies. They also suffer less grievous psychological penalties for breaking contracts, and are less hurt by iron and other fairy weaknesses.

On the other side of the coin, humans with elfin ancestors are the only humans capable of sorcery, and are the most likely to develop Wild Talents.