The sawtooth grain beetle has how many saw-toothed projections on each side?

• A. 4
• B. 5
• C. 6
• D. 8

Answer: (C)

The important idea here is using a distinctive physical feature to identify a stored-product pest. The sawtoothed grain beetle can be recognized by the serrated, saw-like edge along each side of the thorax. Counting these projections on one side is a quick, reliable diagnostic check that helps confirm its identity in the field. The correct option is the one that matches this exact count of projections per side, since that count is the characteristic that sets this beetle apart from other similar pests. Using this trait helps ensure you apply the right control measures and avoid mistaking it for another species with a different management approach.