These guys are Bug/Ghost type Pokémon based around butterflies/moths and their association with death, the afterlife, and rebirth (some say that butterflies/moths are the reincarnates spirits of those that have passed on, while others say that they ferry spirits to the afterlife). I also added in design elements of the Death’s Head Hawkmoth, as well as elements of the Grim Reaper (though more specifically, his interpretation in the fairytale Godfather Death).
by Straight_Attention_5