School of Life Sciences | Ask A Biologist

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Bed Bug

Bed Bug (Cimex lectularius)

Habitat: Bed bugs can be found in beds, sleeping bags, pillows, blankets, carpets and crevices on the floor or on walls.

Size: 4-5 mm

Predators/Prey: They feed on the blood of humans or other warm-blooded animals. Some have been known to live as long as a year without food.

Lifespan: 10-18 months

Interesting facts: Their bite is painless, and they are not known to transmit any disease. Irritation to the skin is caused by the salivary fluid injected by the bugs.

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beg bug SEM image

This is the original scanning electron microscope (SEM) image before it was colorized.

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beg bug SEM image

This is the original scanning electron microscope (SEM) image before it was colorized.

bar graph icon  Vote

Share to Google Classroom

Be part of Ask A Biologist

by volunteering, or simply sending us feedback on the site. Scientists, teachers, writers, illustrators, and translators are all important to the program. If you are interested in helping with the website we have a Volunteer page to get the process started.