Thanks All!
and roenterre, I just went back and checked cos I started with the 50-200 but I couldn't get close enough. Sure enough: 16-45ED at 40mm, 1/160sec, F7.1, ISO200, AV priority, Spot metering. I have taken other macros with this lens quite satisfactorily I think:
The white spots on the butterfly wings tricked the metering a bit at 30cm working distance and made the image a bit dark. Tried it with Brightness and Contrast tool only but it was still striking the wrong balance and was washed out. First posted the image on <potd.com.au> (I have been a member for years - see signature) and a couple of the members there gave me some feedback so I did a rework.
Leveled and then used Benjikan's sharpening action to pop it out a little. Much better result thank you for the tutorial Benjamin.
Again thank you all for the compliments.