Requested reference
Levi, H. W. (1981c). The male of Echinotheridion (Araneae: Theridiidae). Psyche, Cambridge 87(3-4, 1980): 177-179. doi:10.1155/1980/84725 
-- Show included taxa
Levi, H. W. (1981c). The male of Echinotheridion (Araneae: Theridiidae). Psyche, Cambridge 87(3-4, 1980): 177-179. doi:10.1155/1980/84725 -- Show included taxa