Which beetle could be described as hunchbacked?

• A. Confused flour beetle
• B. Drugstore beetle
• C. Merchant grain beetle
• D. Cigarette beetle

Answer: (D)

A hunchbacked look comes from a thorax that is strongly arched over the head, creating a pronounced hump in the beetle’s silhouette. The cigarette beetle is the one most often described this way because its thorax curves sharply, giving a compact, rounded body with a distinct hump. The drugstore beetle is similar in size and color but tends to have a less pronounced arch and a slightly more elongated outline. The confused flour beetle and merchant grain beetle are flatter and more elongated overall, lacking that strong, abrupt thoracic curvature. So the beetle that could be described as hunchbacked is the cigarette beetle.