Requested reference
Gertsch, W. J. (1960b). The fulva group of the spider genus Steatoda (Araneae, Theridiidae). American Museum Novitates 1982: 1-48. 
-- Show included taxa
Gertsch, W. J. (1960b). The fulva group of the spider genus Steatoda (Araneae, Theridiidae). American Museum Novitates 1982: 1-48. -- Show included taxa