Saw-Toothed Grain Beetles in Phoenix, AZ
Oryzaephilus surinamensis
Saw-toothed grain beetles are one of the most common stored-product pests. Learn how to identify and eliminate them.
Notes: From a Phoenix, AZ Exterminator
Appearance
These beetles are slender, flat, and reddish-brown, about 1/10 inch long, with distinctive saw-like projections along the sides of the thorax — the feature they're named for.
Harborage
Like weevils, they infest stored dry goods — cereal, flour, dried fruit, and pet food — and can squeeze into packaging most people assume is sealed.
Are They Dangerous?
They don't bite or spread disease, but they contaminate food products and can spread rapidly between pantry items once established.
Treatment
Because they hide in cracks and packaging seams, a thorough pantry inspection matters as much as product disposal. Antidote Pest Solutions helps track down and eliminate the source. Talk to one of Antidote Pest's Service Pro's to stop the spread.
Prevention Tips
Store dry goods like cereal, flour, and grains in airtight containers
Rotate pantry stock and use older products first
Clean up spilled food and crumbs in pantries and cabinets promptly
Inspect new grocery purchases, especially bulk or long-stored dry goods, for signs of infestation
Vacuum pantry shelves and cracks periodically; Discard infested packages in a sealed bag outside the home
Behavioral Notes
The 'saw-toothed' name comes from six tooth-like projections on each side of their thorax, visible under magnification — a key feature used to identify them.
Despite their small size (about 1/10 inch), they can chew through cardboard, plastic film, and thin packaging to reach stored food, which is why sealed glass or hard plastic containers work best.
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