Portsmouth LangstonePortsmouth Langstone was a borough constituency in Portsmouth. It returned one Member of Parliament to the House of Commons of the Parliament of the United Kingdom, elected by the first past the post system.HistoryThe constituency was created for the 1950 general election, and abolished for the February 1974 general election.Boundaries and boundary changes1950–1955''The constituency was formed from the abolished constituencies of Portsmouth North and Fareham as well as Waterlooville from the Petersfield constituency''1955–1974''Wards renamed''