Australian Leafroller Tachinid

It sure looks right Chun. Unfortunately this one is doing a good job of hiding the most important elements for ID - the abdomen. If you find him again maybe you could ask him nicely to spread his wings... in Wiki it says.. "it is typical that there are three whitish bars on the abdomen; one at the anterior margin of each the third, fourth, and fifth abdominal tergites. The width of these bars differs between species" ... I think we can see enough to say there are three bars but there aren't many species (8?) and after a quick search I still don't know which might be in your area. Certainly looks good enough to go with 'T. sp.' Good spotting.

At last a fly mission... thanks susan... I will put all my others too