Case Bearing Moth Larvae from UK

Worm like creature
Location: Newport, South Wales , United Kingdom
May 10, 2011 8:10 am
After recently cleaning under my bed (The first time in a while) I came across a worm like creature no longer than _____ this space when constricted.
They appear to have what seems to be some material wrapped around their torso for protection/domicile/cocooning and stretch outward to pull much like a snail does.
I found them mostly individually and around collections of dust.
I would like to know what this bug may be and whether I may have a possible infestation ?
I found close to thirty of them in my bedroom, the warmest room in the house.
Thank you for any feedback you could give me.
Signature: Mr R Heaney

Case Bearing Moth Larvae

Dear Mr R Heaney,
You have relatively benign Case Bearing Moth Larvae.  They feed on natural animal fibers, and while it is possible that they might damage a wool rug, they are more likely than not feeding upon shed pet hair.  Vacuuming more regularly should help to control their prodigious numbers.

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BugMan aka Daniel Marlos has been identifying bugs since 1999. is his passion project and it has helped millions of readers identify the bug that has been bugging them for over two decades. You can reach out to him through our Contact Page.

3 thoughts on “Case Bearing Moth Larvae from UK”

  1. i recently found the same bugs in my bed. i have only seen two. one was alive and crawling on my sheets and the second i found was dead(dried looking) im not sure what these are. i recently has a pest control person come out and spray the house in and out. im not sure where these are coming from. I have a down pillow(duck feathers) are they coming from there?

    • I have exactly the same problem. I also have a down pillow duck feather and duvet. I wonder if it is coming from there?

  2. I recently discovered that we have a case bearing clothes moth infestation. I have found many in their little cases all over the house. A couple days ago, my toddler said her bottom hurt. Looking closely, I found something that looked just like one of the case making larva on her anus, wrapped in a little case that looked white and fluffy – it looked like it could have been made out of the stuffing in her pull-up and her bottom was very irritated. I have read extensively about the clothes moth and I know that they supposedly only eat natural, animal fibers, and like to hide in dark places that are not disturbed. But I am finding the larva on polyester, fleece, on our sheets, and then on my baby’s bottom. Do you think it could be a different kind of bug that also makes a case? These wormy things are always in little spun cases like the ones in this picture.


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