What insect could it be?

Question

I found an insect in my garden today, it's 4-5cm long, with a dark brownish body, which ends with three yellow stripes. It has bright yellow long antennae and six yellow legs. It has two sets of quite large wings with many veins. It has what looks like a long sting at the end, underneath a yellow terminal appendage. We live near a lake and a lot of trees.

Thanks!

Answer 1

ichneumon fly.

Well described, by the way.

Answer 2

it sounds very much like a wood wasp to me?????? there big bloody things arent they.

Answer 3

On reflection i think the other guy is right it sounds like a ichneumon fly.