Clover Mite
Scientific Name: Bryobia praetiosa
Order & Family: Trombidiformes: Tetranychidae
Size: 0.75 mm to 0.85 mm (smaller than a pinhead)

Natural Habitat
Lawns, grassy areas, and the sunny sides of buildings; often found on windowsills and walls when they enter homes.
Diet & Feeding
Herbivorous; they feed on sap from over 200 different plant species including grasses, clover, and ornamental flowers.
Behavior Patterns
They are most active in the spring and fall during cooler temperatures. They reproduce via parthenogenesis (females hatch from unfertilized eggs) and are known for crawling into structures in large numbers when their outdoor host plants dry up.
Risks & Benefits
They do not bite humans or pets and do not cause structural damage. Their primary risk is being a nuisance; if crushed, they leave a distinguishing reddish-brown stain due to the pigments in their body (not blood).
Identified on: 1/10/2026