This last few months Ive been finding these 2mm, black, oval, hard, round
backed beetle type insects alive or dead on the window sills around the
Every day there will be about half a dozen on most of them and Ive no idea
what they are or where they're coming from
It suddenly struck me this morning they might be the adults of wood worm,
but Ive no idea what wood worm look like and couldnt find anything on google
Our house is a 1930s one, we've owned it for 2.5 yrs.
Can anyone help?
If they ARE wood worm, how do we find where the infestation is and what's
the likely cost of clearing it up?
Is there any evidence of "flight holes" in your cills (the holes the insects
bore out from the wood) - their size / shape depends on the critter that
caused them, but they generally look like dart holes
We moved into a 30's 3 bed semi 9 months ago and found extensive
woodworm in the floorboards under the loo. Luckily they hadn't done
too much damage to the actual joist. There was also evidence of damp.
Apparently this is very common because when I told the woodworm
chappie on the phone we had found woodworm and told him the type of
house, he finished my sentence telling ME it was in the loo.
Basically condensation had dripped off of the cold cistern and gone
through the gaps in the lino. Then the water was trapped under the
lino and the house was never heated sufficiently to dry it out. We've
since had new heating fitted and improved ventilation.
As for the woodworm we had the entire upstairs treated by a
professional company who provided a 25 year guarantee (which in
reality I see as only being useful for passing on to next owners if we
move). This was a few hundred pounds and we had to take up all the
carpets having moved _everything_ downstairs. It then ponged for a
bit, but we were back in that evening.
The description you gave _sounds_ like immature woodworm beetles to
me, but obviously I havn't seen a picture. Bit of an odd time of year
to find them though - they hatch in the spring.
Immature woodworm beetles
Ive looked at pics on a couple of pest control pages and wood worm adults
are quite long compared to width. These are very much like minature black
ladybirds in shape.
Looking at what you wrote, our potential problem area is under the shower
which was leaking until I replaced the tray earlier this year. Ill have a
Identifying the little blighters is the first step in finding out if they're
doing, or going to do, damage, so you know what to look for in case they've
been around for a while.
They could also be completely harmless and just came inside for some heat
during this cold snap. :-))
| "BigWallop" wrote
| > "BigWallop" wrote
| > > "BigWallop" wrote
| > > > "BigWallop" wrote
| > > > > Do they look anything like these:
| > > > Or like this:
| > > Or anything like these:
| > Or even anything like this:
| Or any of these:
Sure you haven't missed a link? :-)
I had something similar in a flat that I used to live in. Very similar to
My father (who's a Building Surveyor / Valuer and has seen more
infestations, rots and delapidations than I've had hot dinners) couldn't
find them in any of his pest books.
One of his friends in the village had a daughter who had just qualified and
taken a post as a pest control officer in the council's environmental health
department. Took a few up to her and she dug about a bit to find out more.
From memory (it was about 10 years ago now) these were some kind of spider
beetle, she reckoned that they were completely benign.
They mostly seemed to live under the old floor covering (not lino, can't
remember the name of the stuff, very common) in the kitchen. When we ripped
this out and replaced it I sprayed crawling insect killer on the boards
before tacking the hardboard down again and we never saw them again.
Are there any other signs of decay and or damage around? If so, they might
be different and perhaps not so benign...
email me at
richard at olifant d-ot co do-t uk
If they closely resemble these:
Then they are woodworm.
They do look like common furniture beetle (woodworm) to me, I know, I had to
get rid of a roof because them, and you probably have some cold damp,
softened wood somewhere. The beetles you are seeing are the adults and have
emerged from somewhere around the house.
Time to get professional help I'm afraid.
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