Thanks for the advice. If I want to play the role of naive optimist, is there any way of telling if that's a male or female? Maybe it was eggless and just in search of a mate? If not, I'm guessing it would be nesting in a warm place? I've checked the boiler and hot-water tank, but there's a few plac...

Thanks.
That's exactly what I didn't want to hear!
I live in a flat, so bug-bombing isn't ideal - any tips for routing them out without going to those extremes?

Hi, I found this bug in my kitchen today,
Saw a similar one in the living room a couple of weeks back - ran across just below the TV.
This is the south of the UK. It's about 15mm in length.
Thanks.