Rationale (Changed due to New Information)
This species is sparsely distributed in the arid habitats of Namibia and is also known from a single, isolated subpopulation found in the Cederberg Mountains of the Western Cape Province of South Africa. It roosts in inaccessible rock faces that are unlikely to be transformed, and thus the locality does not represent a location. Because no information is available on population size and it is not abundant from elsewhere in its range, we assume there are fewer than 1,000 mature individuals in the assessment region and hence list it as Vulnerable D1. Currently, there is still uncertainty whether L. namibensis and L. wintoni are distinct species or geographical races (molecular research is needed to resolve specific status). Here we assume L. namibensis is a distinct species. Further field studies are needed to identify additional subpopulations and to estimate population sizes and trends. Once such molecular and field data are available, both species should be reassessed.Regional population effects: Although it has intermediate wing loading (Jacobs et al. 2005; Schoeman & Jacobs 2008), and thus is possibly capable of effective dispersal, the South African and Namibian populations have a disjunct distribution and thus we assume no rescue effects are possible.