Levii have a bottom-heavy build that, according to all known laws of aviation, should render them unable to fly. Usually, their bodies are covered in feathers, but some have fluff covering their bodies or even both.
A Levii’s antennae are sensors that aid all their senses — especially those of smell, taste, and hearing. All individuals are born with them, and they come in a large variety of styles and lengths. If they’re damaged or cut, they cannot grow back, which essentially blinds an individual for life. Because of this, antennae care is one of the most important facets of Levii culture, which has allowed the creation of a wide variety of potions and spells to make their antennae stronger or look different. With the help of other Lythians, there are also magical and technological advancements that would aid in the event of injury.
Arthrofauna have compound eyes featuring a dark sclera and lighter-colored irises. On the other hand, Avifauna have a lighter sclera and darker-colored irises. Avifauna have binocular vision that is much stronger than that of an Arthrofauna, but both rely mostly on their antennae for critical navigation data and communication.
Levii have a small, toothless snout that contains a long proboscis. Although omnivorous, they are incapable of eating solid foods due to a lack of teeth. Instead, their elongated, tubular mouth parts allow them to drink fluids such as water, nectar, sap, and more.
The wings of a Levii vary greatly in appearance from individual to individual, but their style depends on their variant. Avifauna have bird-like, feathered wings, while Arthrofauna have insect-like wings that may mirror moths, wasps, butterflies, beetles, or any other variety of winged insect.
The forearm of a Levii are thicker than their upper arm, and end in small fingers or claws. This enlarged section, also known as a "basket," is particularly porous, allowing pollen, spores, and crystals to attach to it with ease. Their hind legs resemble that of a Kiklet
, thin, stick-like, and end in talons.
Levii abdomens closely resemble tails, and serve the same purpose as one, for keeping balance and steering during flight.