Bug Identifier
Mold Mite
Community identification

Mold Mite

Tyrophagus putrescentiae

Order & Family
Order Sarcoptiformes, Family Acaridae
Size
0.3 to 0.45 mm
See this bug in the Encyclopedia

Natural Habitat

Damp, humid indoor environments with high moisture levels, often found on decaying organic matter, stored food products, or surfaces with mold growth.

Diet & Feeding

Primarily feeds on mold, fungi, and yeasts, but also consumes high-protein/fat stored foods like cheese, seeds, and grain germ.

Behavior Patterns

They prefer very high humidity (above 60%) to survive. They reproduce rapidly in favorable conditions, and while they don't fly, they can be dispersed by wind or hitchhiking on other insects.

Risks & Benefits

They do not bite humans or pets but can cause allergic reactions ('grocer's itch') and respiratory issues if inhaled in large quantities. They are considered pests of stored food products and indicators of moisture/mold problems.