Flour Mites

Flour Mite/Grain Mite

Acarus siro

Appearance

Flour Mites
  • Adult — 0.5 mm long. 4 pairs of legs. White or pale brown. Slow moving.
  • Larva — 6 legged and 0.5 mm long. White in colour. Passes through two, 8 legged nymphal stages.

Lifecycle

  • 9–11 days at 23°C and 90% relative humidity.

Habits

  • Under adverse conditions, may pass through a long and very resistant stage called a hypopus.