Bug Identifier
Mold Mite (also known as Tyroglyphid mite)
Community identification

Mold Mite (also known as Tyroglyphid mite)

Tyrophagus putrescentiae

Order & Family
Order: Sarcoptiformes; Family: Acaridae
Size
0.3 to 0.45 mm (nearly invisible to the naked eye; appearing as dust-like moving specks)
See this bug in the Encyclopedia

Natural Habitat

Found in environments with high humidity and mold, including pantries, kitchens, damp basements, and stored food products.

Diet & Feeding

Fungivorous; they primarily feed on mold, fungi, and high-protein/fat stored foods like seeds, nuts, cheese, and dried meats.

Behavior Patterns

They reproduce rapidly in humid conditions. When populations are high, they appear as a moving 'dust'. They exhibit a phoretic behavior where they hitch rides on other insects to travel to new food sources.

Risks & Benefits

They do not bite or sting humans, but they can cause allergic reactions ('grocer's itch') and respiratory issues if inhaled. They are considered pests as they contaminate food supplies with mold spores and waste.