What do bedbugs smell like and how do they look? - briefly
Bedbugs emit a faint, musty odor similar to coriander or mold when they are crushed or disturbed. Adults are reddish‑brown, oval, roughly 4–5 mm long, and their bodies flatten after feeding, showing a lighter, swollen abdomen.
What do bedbugs smell like and how do they look? - in detail
Bedbugs emit a distinctive odor that many describe as sweet, musty, or reminiscent of coriander. The scent originates from specialized glands that release volatile compounds when the insects are disturbed or crushed. The odor can also carry faint notes of cinnamon or garlic, depending on the individual’s perception. Their fecal deposits leave a subtle, sweetish smell on infested surfaces, which may become noticeable in heavily contaminated areas.
The insects are small, wingless, and oval-shaped. Adult size ranges from 1 mm to 5 mm in length, expanding to about 7 mm after a blood meal. Their bodies are flat when unfed, allowing them to hide in cracks and crevices. Color varies from light brown to reddish‑brown after feeding; unfed individuals appear tan or pale. Key visual features include:
- Six legs, each ending in a small claw.
- Two short, segmented antennae positioned near the head.
- Two compound eyes on the dorsal surface.
- A smooth, hardened exoskeleton with a glossy finish.
- A pointed, elongated abdomen that swells with engorged blood.
When viewed under magnification, the dorsal surface shows fine ridges and a pattern of tiny punctures. The ventral side reveals the mouthparts adapted for piercing skin and sucking blood. These characteristics enable identification and differentiation from other household pests.