The fourth-ranked New Zealand got their noses in front again and discovered the benefits of moving the top class Michelsen further forward. When striker Michaela Curtis helped Michelsen get one on one with the Australian goalkeeper and she buried the chance.
Then came the killer blow which gave Australia the series.
''It's painful, and avoidable I guess," midfielder Rose Keddell said after the match.
''We put out a strong performance and they were the ones making the unforced errors. But it's the consistency we need to hold onto."
New Zealand head away shortly for the Champions Trophy tournament in Mendoza, Argentina , starting on November 29.
In the curtain raiser, the men's Black Sticks drew 1-1 with Japan.
Debutant Richard Bain put New Zealand ahead in the final quarter before Miyu Tanimitsu equalised a minute later from a snappy penalty corner.
''It was really disappointing that we conceded immediately and that's something we need to address," new skipper Simon Child said.
New Zealand improved in the second half, had more possession, but were unable to grab their opportunities.
The second match in the four-game series is also in Wellington on Wednesday.