Beetles in back garden

Hi,

over the last two weeks, a lot of small black beetles have turned up in my back garden/patio area, I have stamped on loads of them but every night there is more, always about 10 at any given time, I go outside of the house to smoke and as soon as it gets dark these bloody thing just come out to play, can anyone recommend a spray/powder I can put down to get rid of them, I assume at night they are drawn by light from the house out from the garden, has anyone any suggestions about a product or even old wifes tale on how to stop them,

Thanks in advance

They're harmless. Let them alone

You should try naming them.. I'll start you off,

Ringo (aka Thomas the tank engine)
Paul
George
John

Good lord, do we have to eliminate every living thing within a 50 ft radius? What about all the bugs and germs you can't see? Do they attack you in the dark? Or steal your lighter . If they do, squish them. Otherwise, leave 'em alone. You'll never get them all and might just annoy them

Do they look like this?
http://www.gardensafari.net/pics/duizendpoten/porcellio_scaber_hs3_0806.jpg
If so, they are just woodlice - harmless in the garden. They come out at night as they like the cool damp atmosphere. Please don't squash them as I'm sure that they have a role to play in the whole bio-diversity thing. Sometimes they make their way into the bathroom and then I always remove them to the back garden by using a piece of card.