Disappearing senators of 45th Parliament

DISAPPEARING SENATORS OF THE 45TH PARLIAMENT

* Larissa Waters (Qld, Greens): Born in Canada and resigned in July 2017 after revealing she still had dual citizenship - in breach of the constitution. Elected to the Senate in 2010.

* Scott Ludlam (WA, Greens): Born in New Zealand and resigned in July 2017 after discovering he was still a dual citizen, ruling him ineligible to stand for election. The party's co-deputy leader was naturalised as a teenager in Australia, and had been in the Senate since 2007.

* Rod Culleton (WA, One Nation turned independent): Booted from the Senate in January 2017 after the High Court ruled he wasn't validly elected because he had been convicted of a larceny charge at the time of voting - even though it was later quashed. The Federal Court also declared him a bankrupt, which would also have disqualified him from sitting in parliament. Elected July 2016.

* Bob Day (SA, Family First): Resigned in November 2016 before the High Court determined he had been improperly elected. It found the South Australian indirectly benefited from a government lease arrangement on his Adelaide electorate office, in breach of the constitution. Elected July 2014.