“Soft-Shelled Prehistoric Crustacean” Likely A Sowbug

We recently received a very informative message from one of our readers in Baltimore, Maryland. In his message, he detailed his discovery of a few worm-like organisms on the corner of his bed. He moved his bed away from the wall and found three similar yet smaller creatures on the baseboard. They were “gray, semi-transparent, fuzzy looking” creatures in various stages of life:

Our reader inspected every inch of his bed but did not find any other organisms or anything else of note. His bed is near his bathroom, but he hasn’t seen any of the creatures in there either. However, he did notice one crawling up the wall in his dining room a few days after the initial discovery in his bedroom. He wrote, “to me, it looks like some kind of soft-shelled prehistoric crustacean. Could it be a carpet beetle larva or silverfish?”

While both carpet beetle larvae and silverfish are common household pests, we don’t think either is a match for what our reader found. At first, we worried he might be dealing with bed bugs, but then he surely would have found more when he examined his bed. Also, bed bugs have a more circular appearance and are usually more red than gray. So, if not bed bugs, what has our reader found?

Well, he wasn’t right about his two guesses, but he was on the right track when he called the creature a crustacean. We believe he has found sowbugs, which are land-living crustaceans! Sowbugs have segmented bodies, seven pairs of legs, two pairs of antennae, and cerci (which are paired tail-like appendages.)

Like many worm-like organisms, sowbugs feed on organic material and thrive in moist environments. While they can be annoying to find around the house, they won’t cause any damage or do any harm. They don’t bite or sting, and they aren’t known to carry or transmit human diseases.

Since sowbugs aren’t pests, our reader doesn’t need to stress out too much about getting rid of them. He can make sure to close windows and doors to prevent future sowbugs from crawling in, and he can seal any gaps or cracks in his foundation. He might also want to install a dehumidifier in his home to make the environment less wet and therefore less appealing to sowbugs.

To wrap up, we believe the segmented creatures our reader found are sowbugs, which are land-living crustaceans. Fun fact: they are more closely related to shrimp than insects!

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"Soft-Shelled Prehistoric Crustacean" Likely A Sowbug
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"Soft-Shelled Prehistoric Crustacean" Likely A Sowbug
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We believe the segmented creatures our reader found are sowbugs, which are land-living crustaceans. Fun fact: they are more closely related to shrimp than insects!
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