[3] It was not seen again until 1977 when Dr Jonathan Ball of Cape Town found a population at Nature's Valley 50 km to the east of Knysna.

[4] This population died out during the 1980s, but in 1991 Ernest Pringle of Bedford in the Eastern Cape Province located another colony at Brenton-on-Sea.

A housing development planned for the site was prevented from being built after a highly publicised campaign to save the species from extinction.

[5] Due to this, the land where the species breeds was procured by the South African Government and created into a Special Nature Reserve in July 2003.

[8] This research studied the life cycle of the Brenton blue and all the ecological factors that impact on its survival including geology, microclimate, vegetation communities, ant interactions (myrmecophily),[9] and the biology of its larval food plant Indigofera erecta Thunberg.