Mothkin are usually on the larger side of humanoids when they are fully matured, ranging anywhere from 6'4" to 7'8". Despite their larger stature, Moth-kin are in the Medium size classification.

Mothkin have a walking speed of 30 feet.

The form moth-kin take during their cycle of life is more complicated. When first born to around 5 years old, they are considered a baby caterpillar, often being small and furry. During this age span they cannot learn to talk, but will still slowly understand basic ideas. After 5 years, they will enter a cocoon state for 9 months where afterwards they will become a full moth-kin. At this point, Moth-kin become fully matured at the age of 25-27 but will live for around 150-250 years. 

Mothkin can read, write and speak Common and Sylvan. Furthermore, you can talk and understand any type of insect as if you were under the effect of the Speak with Animals spell.

Moth-kins are naturally wise and agile, your wisdom increases by 2 and your dexterity increases by 1. However, not all moth-kin are the same, you may change both stat increases.

You are considered fey and Humanoid. You have the advantage of saving throws attempting to charm or frighten you. 

Mothkin typically have four arms in total. Because of this, Mothkin can hold up to four arms' worth of weapons or items at a time and when you make the attack action, you can use any weapon you are carrying. However, the shape of your body means your two lower arms can only hold light weapons and items that weigh less then 25 or less pounds, and cannot carry shields and martial weapons.

Mothkin tend to be too heavy and their wings are too fragile for general flight. However, they can hover a number of feet above ground or liquid equal to their dexterity modifier + PB. Furthermore when your wings are out you are under the effect of feather fall. You cannot wear heavy armour with this feature and any Armor must have room for your wings to move and extend. However, if your wings get wet through normal or magical means, these features cannot be used until they dry or you use an action to shake them dry. 

Your special evolutionary traits allow you to see clearly and perfectly in complete darkness in complete color in a 90ft range.  However, you have disadvantage on any checks made to ignore distractions such as sounds, lights etc. and when in a dark area, you must make a wisdom saving throw when looking at a light in darkness (DC 15) or become immobile and stare at the light.

You know the Guidance cantrip. When you reach 3rd level, you can cast a guiding bolt as a 2nd-level spell once with this trait and at 5th level you can cast moonbeam as a 3rd level spell. You  regain the ability to cast these spells when you finish a long rest. You can use any spell slots you have to cast these spells, otherwise your spellcasting modifier is wisdom