Meet the Kamitetep: The Mysterious Moth That Clings to Your Walls! (Phereoca Uterella)

Though tiny in size, the Kamitetep—scientifically known as Phereoeca uterella—is no ordinary moth.
This small but formidable insect often clings to the walls and furniture inside your home, quietly lurking in the shadows.At first glance, it might seem harmless or even strange-looking, but this moth’s caterpillar stage hides a secret: it can cause painful bruises, intense itching, and lingering skin irritation.
If you’ve ever noticed small bumps, itching, or bruises appearing mysteriously on your skin, especially after spending time indoors, it could be the work of this unusual household pest.
*Phereoeca uterella* belongs to the family of moths known commonly as the plaster bagworms or household casebearers.
Native to warm, humid climates, this species thrives in many parts of the United States and other similar environments around the world.
The Kamitetep is often invisible to the casual eye, as its larvae weave tiny protective cocoons that resemble bits of dust or debris attached to walls, corners, and furniture.
The caterpillar larvae live inside these cocoon-like cases, which are made from silk fibers combined with sand, dust, and even soil particles.
These makeshift shells help the larvae camouflage perfectly within your home’s nooks and crannies, making them incredibly difficult to spot.
The cocoon typically has small openings at the front or back, or sometimes both, allowing the larvae to poke out partially to feed or move around, but never leaving the safety of their casing entirely—unless they absolutely need to.