Requested reference
Mackay, I. R. (1973). A new species of widow spider (genus Latrodectus) from southern Africa (Araneae: Theridiidae). Psyche, Cambridge 79(3, 1972): 236-242. doi:10.1155/1972/51723 
-- Show included taxa
Mackay, I. R. (1973). A new species of widow spider (genus Latrodectus) from southern Africa (Araneae: Theridiidae). Psyche, Cambridge 79(3, 1972): 236-242. doi:10.1155/1972/51723 -- Show included taxa