Various species — Liposcelis bostrychophila, Lepinotus patruelis
• Adult — Size varies according to species. 1–2 mm long. Pale yellow–brown to dark brown in colour.
• Nymphs — very small, often appear transparent. No larval stages.
• Liposcelis bostrychophila - prefers high temperatures 25 - 30°C.
• Lepinotus patruelis - will breed at 5 - 15°C.
• Liposcelis bostrychophila - Common in homes.
• Lepinotus patruelis - Common in factories and on pallets.