Sydney  - An Australian law lecturer who bared her bottom at a judge has been jailed for four months after losing her appeal against a contempt of court conviction, news reports said Wednesday.

Megumi Ogawa, 41, was sentenced this year for what the judge described as "disgusting behaviour" at an earlier trial where she was found guilty of harassing court officials.

During the earlier trial, the court was told the Southern Cross University staff member threatened court officials with death.

Ogawa, a Japanese national who conducted her own defence in the Brisbane appeals court, was ejected several times after screaming abuse and wrestling with corrective services officers. (dpa)