Everything I read about the EF 50mm compact macro says that it'll only go to 1:1 when used with the optional accessory life size converter.
I take on board the comments about the longer focal length, for what I have planned the 50mm will have to do.......some of us are on budgets for toy buying you know....
if they try and fly or crawl away, a quick zap of the wife's hairspray will stop em in their tracks